The Qur’anic Root S W ʾ

1. The semantic core and early Arabic

Early lexicographers explained this family through concepts such as ugliness, badness, being unwelcome, and unpleasantness. سَاءَهُ الأمر (sāʾahu al-amr) was said of something that distressed or displeased a person, while السوء (al-sūʾ) could refer to an unpleasant thing, harm, an affliction, or an objectionable condition.

The same root was also used to judge the quality of something itself: a bad person, a bad deed, a bad path, or a bad outcome.

There is a clear semantic connection between these two directions, but there is no need to construct a cognitive narrative to explain it. An event may be unpleasant for someone, and a behavior or path may also be described as “bad” in the language itself. The root accommodates both.

In early Arabic, سوءة (sawʾah) was also used for something whose exposure was considered ugly or shameful, while السوأى (al-sūʾā) and أسوأ (aswaʾ) expressed more severe degrees of badness.

The root’s core can therefore be retained as:

The badness or unpleasantness of an action, condition, event, or quality, with the particular referent determined by context.

2. How the verbs work: سَاءَ (sāʾa) and أَسَاءَ (asāʾa)

The verb سَاءَ (sāʾa) appears in the Qur’an in two related directions. Sometimes something displeases a person:

إِنْ تَمْسَسْكُمْ حَسَنَةٌ تَسُؤْهُمْ

In tamsaskum ḥasanatun tasuʾhum.

If something good touches you, it displeases them.

Al-Imran 3:120

Here, تَسُؤْهُمْ (tasuʾhum) has no direct connection with “committing a sin.” A ḥasanah—a good thing—reaching others is unpleasant to them.

The account of Lot also states:

وَلَمَّا جَاءَتْ رُسُلُنَا لُوطًا سِيءَ بِهِمْ وَضَاقَ بِهِمْ ذَرْعًا

Wa-lammā jāʾat rusulunā Lūṭan sīʾa bihim wa-ḍāqa bihim dharʿā.

When Our Messengers came to Lot, he was distressed and worried over their coming, and felt constrained on their account.

Hud 11:77

Here, too, the verb expresses distress and worry.

But ساء (sāʾa) can describe a path, a judgment, or an outcome itself as bad:

إِنَّهُ كَانَ فَاحِشَةً وَمَقْتًا وَسَاءَ سَبِيلًا

Innahu kāna fāḥishatan wa-maqtan wa-sāʾa sabīlā.

Indeed, it was a fāḥishah—a gravely indecent act—and a cause of loathing; and what a bad path it was.

An-Nisa 4:22

Or:

سَاءَ مَا يَحْكُمُونَ

Sāʾa mā yaḥkumūn.

How badly they judge.

In these constructions, the root expresses a negative judgment about the thing itself.

Form IV, أَسَاءَ (asāʾa), is more closely connected with acting badly. The Qur’an says:

إِنْ أَحْسَنْتُمْ أَحْسَنْتُمْ لِأَنْفُسِكُمْ وَإِنْ أَسَأْتُمْ فَلَهَا

In aḥsantum aḥsantum li-anfusikum wa-in asaʾtum fa-lahā.

If you do good, you do good for yourselves; and if you act badly, it is for yourselves.

Al-Isra 17:7

And:

مَنْ عَمِلَ صَالِحًا فَلِنَفْسِهِ وَمَنْ أَسَاءَ فَعَلَيْهَا

Man ʿamila ṣāliḥan fa-li-nafsihi wa-man asāʾa fa-ʿalayhā.

Whoever does a righteous deed does so for himself, and whoever acts badly does so against himself.

Fussilat 41:46

The contrast with أَحْسَنَ (aḥsana) and عَمِلَ صَالِحًا (ʿamila ṣāliḥan) shows that أَسَاءَ (asāʾa) in these usages means “to act badly.” The precise kind of badness is not determined by the verb itself.

3. Sūʾ, sawʾ, and sayyiʾah: from harm to a bad deed

سُوء (sūʾ)

سُوء (sūʾ) has a very broad field in the Qur’an.

Sometimes it concerns moral badness:

إِنَّمَا يَأْمُرُكُم بِالسُّوءِ وَالْفَحْشَاءِ

Innamā yaʾmurukum bi-s-sūʾi wa-l-faḥshāʾ.

He enjoins upon you only sūʾ—badness—and faḥshāʾ—grave indecency.

Al-Baqarah 2:169

Elsewhere, however, it refers to harm that reaches a person:

فَانْقَلَبُوا بِنِعْمَةٍ مِّنَ اللَّهِ وَفَضْلٍ لَّمْ يَمْسَسْهُمْ سُوءٌ

Fa-nqalabū bi-niʿmatin mina llāhi wa-faḍlin lam yamsashum sūʾ.

They returned with a blessing from The God and bounty, no sūʾ having touched them.

Al-Imran 3:174

Here, “no sin had touched them” makes no sense. سوء (sūʾ) is something harmful or unpleasant.

The same meaning appears in An-Naml:

أَمَّنْ يُجِيبُ الْمُضْطَرَّ إِذَا دَعَاهُ وَيَكْشِفُ السُّوءَ

Amman yujību l-muḍṭarra idhā daʿāhu wa-yakshifu s-sūʾ.

Or He who answers the distressed when he calls upon Him, and removes the sūʾ.

An-Naml 27:62

Here, sūʾ is the distress or harm removed from a person.

مِنْ غَيْرِ سُوءٍ (min ghayri sūʾ) — Without any sūʾ

The account of Moses provides one of the clearest indications of the word’s range:

وَاضْمُمْ يَدَكَ إِلَىٰ جَنَاحِكَ تَخْرُجْ بَيْضَاءَ مِنْ غَيْرِ سُوءٍ

Wa-ḍmum yadaka ilā janāḥika takhruj bayḍāʾa min ghayri sūʾ.

Draw your hand toward your side; it will come out white, without any sūʾ.

Ta-Ha 20:22

The same expression is repeated in An-Naml 27:12 and Al-Qasas 28:32.

Sūʾ here is not moral. The subject is the hand’s whiteness without defect, injury, or disease. Later commentators often named a specific disease, but the Qur’an does not name that disease. A translation such as “without defect or disease” is therefore more faithful than introducing a name that is absent from the text.

سَوْء (sawʾ) and سُوء (sūʾ)

The Qur’an contains both سَوْء (sawʾ) and سُوء (sūʾ). Early linguistic accounts record explanations of their difference. In some accounts, سُوء (sūʾ) is explained through unpleasant things, affliction, and what is unwelcome, while سَوْء (sawʾ), in expressions such as رجل سوء (rajul sawʾ), refers more to badness and corrupt character.

For example, the Qur’an says:

مَا كَانَ أَبُوكِ امْرَأَ سَوْءٍ

Mā kāna abūki mraʾa sawʾ.

Your father was not a bad man.

Maryam 19:28

In other constructions, it uses ظَنَّ السَّوْءِ (ẓann al-sawʾ), مَثَلُ السَّوْءِ (mathal al-sawʾ) and دَائِرَةُ السَّوْءِ (dāʾirat al-sawʾ).

This distinction is not so absolute, however, that the meaning of each verse can be determined solely from the vowel on the letter sīn. At some points, variant readings have also existed. The sentence construction therefore remains the primary criterion.

سَيِّئَة (sayyiʾah) — A bad deed or an undesirable event

سَيِّئَة (sayyiʾah) is one of this root’s most important derivatives, because the Qur’an uses it in two very different fields.

Sometimes a sayyiʾah is an action that a person has performed:

بَلَىٰ مَن كَسَبَ سَيِّئَةً وَأَحَاطَتْ بِهِ خَطِيئَتُهُ

Balā man kasaba sayyiʾatan wa-aḥāṭat bihi khaṭīʾatuh.

Yes, whoever acquires a sayyiʾah and is encompassed by his offense…

Al-Baqarah 2:81

And:

مَنْ جَاءَ بِالسَّيِّئَةِ فَلَا يُجْزَىٰ إِلَّا مِثْلَهَا

Man jāʾa bi-s-sayyiʾati fa-lā yujzā illā mithlahā.

Whoever brings a sayyiʾah is recompensed only with its like.

Al-Anam 6:160

In these two verses, sayyiʾah belongs to the field of moral responsibility.

But Al-Imran states:

وَإِنْ تُصِبْكُمْ سَيِّئَةٌ يَفْرَحُوا بِهَا

Wa-in tuṣibkum sayyiʾatun yafraḥū bihā.

And if a sayyiʾah befalls you, they rejoice in it.

Al-Imran 3:120

Here, sayyiʾah is something that befalls a person. It cannot be translated as “sin.”

An-Nisa 4:78 makes this distinction clearer:

وَإِن تُصِبْهُمْ حَسَنَةٌ يَقُولُوا هَٰذِهِ مِنْ عِندِ اللَّهِ وَإِن تُصِبْهُمْ سَيِّئَةٌ يَقُولُوا هَٰذِهِ مِنْ عِندِكَ

Wa-in tuṣibhum ḥasanatun yaqūlū hādhihi min ʿindi llāhi wa-in tuṣibhum sayyiʾatun yaqūlū hādhihi min ʿindik.

If a ḥasanah befalls them, they say, “This is from The God”; and if a sayyiʾah befalls them, they say, “This is from you.”

An-Nisa 4:78

Here, ḥasanah and sayyiʾah are desirable and undesirable conditions, or success and distress.

Al-Araf also says:

ثُمَّ بَدَّلْنَا مَكَانَ السَّيِّئَةِ الْحَسَنَةَ

Thumma baddalnā makāna s-sayyiʾati l-ḥasanah.

Then We replaced the sayyiʾah with the ḥasanah.

Al-Araf 7:95

And:

وَبَلَوْنَاهُم بِالْحَسَنَاتِ وَالسَّيِّئَاتِ لَعَلَّهُمْ يَرْجِعُونَ

Wa-balawnāhum bi-l-ḥasanāti wa-s-sayyiʾāti laʿallahum yarjiʿūn.

We tested them with ḥasanāt and sayyiʾāt, so that they might return.

Al-Araf 7:168

At a basic level, then, سيئة (sayyiʾah) is “a bad or undesirable thing.” Sometimes a person does it; sometimes it is something that reaches a person.

سَيِّئَات (sayyiʾāt) and the consequences of action

The plural سَيِّئَات (sayyiʾāt) also sometimes refers to bad deeds:

وَالَّذِينَ عَمِلُوا السَّيِّئَاتِ ثُمَّ تَابُوا مِن بَعْدِهَا

Wa-lladhīna ʿamilū s-sayyiʾāti thumma tābū min baʿdihā.

Those who did sayyiʾāt, then afterward repented…

Al-Araf 7:153

But in other constructions, such as:

فَأَصَابَهُمْ سَيِّئَاتُ مَا عَمِلُوا

Fa-aṣābahum sayyiʾātu mā ʿamilū.

Then the bad things of what they had done befell them.

An-Nahl 16:34

Or:

وَبَدَا لَهُمْ سَيِّئَاتُ مَا كَسَبُوا

Wa-badā lahum sayyiʾātu mā kasabū.

The bad things of what they had acquired became apparent to them.

Az-Zumar 39:48

The word can bring to mind either the bad deeds themselves or their bad consequences. The construction of the verse must determine which direction is emphasized in translation; the outcome should not be placed within the root’s own meaning without grounds.

4. Sawʾah: something that must be covered

One important branch of this family is سَوْأَة (sawʾah) and its plural سَوْآت (sawʾāt).

The account of Adam and his spouse states:

فَلَمَّا ذَاقَا الشَّجَرَةَ بَدَتْ لَهُمَا سَوْآتُهُمَا وَطَفِقَا يَخْصِفَانِ عَلَيْهِمَا مِن وَرَقِ الْجَنَّةِ

Fa-lammā dhāqā sh-shajarata badat lahumā sawʾātuhumā wa-ṭafiqā yakhṣifāni ʿalayhimā min waraqi l-jannah.

When they tasted the tree, their sawʾāt became apparent to them, and they began placing leaves of the Garden over themselves.

Al-Araf 7:22

And:

يَا بَنِي آدَمَ قَدْ أَنزَلْنَا عَلَيْكُمْ لِبَاسًا يُوَارِي سَوْآتِكُمْ

Yā banī Ādama qad anzalnā ʿalaykum libāsan yuwārī sawʾātikum.

O children of Adam, We have sent down to you clothing that covers your sawʾāt.

Al-Araf 7:26

The construction of these verses shows that سوءات (sawʾāt) concerns parts of the body covered by clothing. In English, “private parts” or “concealed parts of the body” can serve as an appropriate explanation.

The same word has another application, however, in the account of Adam’s two sons:

فَبَعَثَ اللَّهُ غُرَابًا يَبْحَثُ فِي الْأَرْضِ لِيُرِيَهُ كَيْفَ يُوَارِي سَوْأَةَ أَخِيهِ

Fa-baʿatha llāhu ghurāban yabḥathu fī l-arḍi li-yuriyahu kayfa yuwārī sawʾata akhīh.

Then The God sent a crow searching in the earth, to show him how to cover his brother’s sawʾah.

Al-Maidah 5:31

And then:

فَأُوَارِيَ سَوْأَةَ أَخِي

Fa-uwāriya sawʾata akhī.

So that I may cover my brother’s sawʾah.

The issue here is burying the slain brother. Sawʾah therefore refers to something of his body or corpse that must be concealed from view.

These two usages should not be collapsed into a single fixed referent. What they share is something of the body or bodily condition whose remaining exposed is objectionable and whose covering is desirable.

Here, the connection between sawʾah and the root’s central field is visible, without any need to construct a moral theory about the body from it.

5. Degrees of badness and comparison with related concepts

أَسْوَأ (aswaʾ) and السُّوأَىٰ (al-sūʾā)

أَسْوَأ (aswaʾ) is an elative form, expressing “worse” or “worst”:

لِيُكَفِّرَ اللَّهُ عَنْهُمْ أَسْوَأَ الَّذِي عَمِلُوا

Li-yukaffira llāhu ʿanhum aswaʾa lladhī ʿamilū.

So that The God may cover over for them the worst of what they have done.

Az-Zumar 39:35

السُّوأَىٰ (al-sūʾā) also appears in Ar-Rum:

ثُمَّ كَانَ عَاقِبَةَ الَّذِينَ أَسَاءُوا السُّوأَىٰ

Thumma kāna ʿāqibata lladhīna asāʾū s-sūʾā.

Then the outcome of those who acted badly was al-sūʾā.

Ar-Rum 30:10

Commentarial sources have proposed referents such as punishment and the Fire for السوأى (al-sūʾā), but these should not replace the word’s own meaning. In a basic translation, “the worst outcome” or “a bad outcome” is more natural.

مُسِيء (musīʾ), likewise, is someone who acts badly:

وَمَا يَسْتَوِي الْأَعْمَىٰ وَالْبَصِيرُ وَالَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ وَلَا الْمُسِيءُ

Wa-mā yastawī l-aʿmā wa-l-baṣīru wa-lladhīna āmanū wa-ʿamilū ṣ-ṣāliḥāti wa-lā l-musīʾ.

The blind and the seeing are not equal, nor are those who believed and did righteous deeds equal to the one who acts badly.

Ghafir 40:58

س و ء (S W ʾ) and ح س ن (Ḥ S N)

The contrast between سيئة (sayyiʾah) / حسنة (ḥasanah) is one of the Qur’an’s most important guides.

These two words are not merely “sin and merit.” Both can refer to human actions or to conditions that befall a person.

In Al-Anam 6:160, a person brings a ḥasanah or sayyiʾah; in An-Nisa 4:78, a ḥasanah or sayyiʾah befalls the person.

The kind of verb accompanying the word therefore plays an essential role in determining its meaning.

س و ء (S W ʾ) and ش ر ر (SH R R)

سوء (sūʾ) and شر (sharr) overlap substantially, and both belong to the field of badness and harm.

شر (sharr) repeatedly stands opposite خير (khayr) in the Qur’an and can encompass any kind of badness, harm, or undesirable outcome.

سوء (sūʾ) is also very broad, but in many constructions it highlights the bad or objectionable quality of something, harm that reaches a person, or a condition that is unpleasant for that person.

This tendency cannot, however, be turned into a rule that sharr is always “objective” and sūʾ always “experiential.” Both can apply to actual external matters or moral behavior. Their difference requires a separate examination of the root ش ر ر (SH R R).

س و ء (S W ʾ) and ف ح ش (F Ḥ SH)

The Qur’an itself places the two alongside each other:

إِنَّمَا يَأْمُرُكُم بِالسُّوءِ وَالْفَحْشَاءِ

Innamā yaʾmurukum bi-s-sūʾi wa-l-faḥshāʾ.

He enjoins upon you only sūʾ—badness—and faḥshāʾ—grave indecency.

Al-Baqarah 2:169

And:

كَذَٰلِكَ لِنَصْرِفَ عَنْهُ السُّوءَ وَالْفَحْشَاءَ

Kadhālika li-naṣrifa ʿanhu s-sūʾa wa-l-faḥshāʾ.

Thus We acted to turn sūʾ and faḥshāʾ away from him.

Yusuf 12:24

Their occurrence together shows that they are not complete synonyms.

سوء (sūʾ) has a broader field of badness and objectionable things. فحشاء (faḥshāʾ) is closer to badness whose ugliness is pronounced and exceeds the ordinary degree.

This distinction, too, should remain a tendency and be developed through a separate study of the root ف ح ش (F Ḥ SH).

6. Challenges of understanding and suggested translations

The principal error with this root is turning all its derivatives into “sin.”

When the Qur’an says لَمْ يَمْسَسْهُمْ سُوءٌ (lam yamsashum sūʾ), it speaks of harm not reaching them. In مِنْ غَيْرِ سُوءٍ (min ghayri sūʾ), sūʾ approaches defect or disease. In تُصِبْكُمْ سَيِّئَةٌ (tuṣibkum sayyiʾah), sayyiʾah is an unpleasant event. But in مَنْ كَسَبَ سَيِّئَةً (man kasaba sayyiʾah), sayyiʾah is an action for which a person is responsible.

Conversely, the root should not be reduced to “something a person dislikes.” The Qur’an also speaks of a bad path, a bad judgment, a bad deed, and a bad outcome. The word can therefore also express a judgment about something itself.

In مِنْ غَيْرِ سُوءٍ (min ghayri sūʾ), it is also preferable not to introduce the name of a specific disease without the Qur’an explicitly naming it.

Likewise, with السوأى (al-sūʾā), “the Fire” or “Jahannam” can be an interpretive referent, but is not the word’s own basic meaning.

Suggested translations for Forqan

سَاءَهُ (sāʾahu) / تَسُؤْهُمْ (tasuʾhum):
“It displeased him,” “it distressed him,” or “it was unpleasant to them.”

سِيءَ بِهِمْ (sīʾa bihim):
“He became worried and distressed on their account.”

سَاءَ سَبِيلًا (sāʾa sabīlā):
“What a bad path it is.”

سَاءَ مَا يَحْكُمُونَ (sāʾa mā yaḥkumūn):
“How badly they judge.”

أَسَاءَ (asāʾa):
“He did wrong” or “he acted badly.”

سُوء (sūʾ):
“Badness,” “harm,” “distress,” “unpleasantness,” or “an objectionable thing,” according to context.

لَمْ يَمْسَسْهُمْ سُوءٌ (lam yamsashum sūʾ):
“No harm touched them.”

يَكْشِفُ السُّوءَ (yakshifu al-sūʾ):
“He removes the distress” or “He removes the sūʾ.”

مِنْ غَيْرِ سُوءٍ (min ghayri sūʾ):
“Without defect or disease.”

سَوْء (sawʾ):
In constructions such as رَجُلَ سَوْءٍ (rajul sawʾ), قَوْمَ سَوْءٍ (qawm sawʾ), ظَنَّ السَّوْءِ (ẓann al-sawʾ): “bad,” “objectionable,” or a natural rendering of the particular expression.

سَيِّئَة (sayyiʾah) in the context of action:
“Badness,” “a bad deed,” or “sayyiʾah.”

سَيِّئَة (sayyiʾah) in the context of an event:
“A bad event,” “distress,” or “an undesirable condition.”

سَيِّئَات (sayyiʾāt):
“Bad things,” “bad deeds,” or, in some constructions, “bad consequences,” according to context.

سَوْأَة (sawʾah) / سَوْآت (sawʾāt) in the account of Adam:
“Private parts,” “concealed parts of the body,” or retaining the term itself with an explanation.

سَوْأَةَ أَخِيهِ (sawʾata akhīhi):
The translation can retain “his brother’s sawʾah,” with an explanation: that of his brother’s body or corpse which had to be covered.

أَسْوَأ (aswaʾ):
“Worse” or “worst.”

السُّوأَىٰ (al-sūʾā):
“A bad outcome” or “the worst outcome.”

مُسِيء (musīʾ):
“A wrongdoer” or “someone who acts badly.”

Conclusion

The root س و ء (S W ʾ) in the Qur’an is much broader than the term “sin.” Its core concerns badness, unpleasantness, ugliness, or harm, but the sentence construction and context determine the nature of that badness.

The verb سَاءَ (sāʾa) sometimes shows that something has displeased or worried someone, and sometimes judges a path, a judgment, or an outcome itself as bad. أَسَاءَ (asāʾa) is more closely connected with acting badly, and the Qur’an places it opposite doing good and performing righteous deeds.

سُوء (sūʾ) can be moral badness, but it can also be harm, disease, or distress. The expression مِنْ غَيْرِ سُوءٍ (min ghayri sūʾ) concerning Moses’ hand clearly shows that sūʾ cannot always be understood as “sin.”

سَيِّئَة (sayyiʾah) likewise has two important fields. Sometimes it is something a person does, acquires, and bears responsibility for; sometimes it is something that befalls a person. Verbs such as كَسَبَ (kasaba), جَاءَ بِـ (jāʾa bi-), أَصَابَ (aṣāba) and مَسَّ (massa) help identify the kind of usage.

سَوْأَة (sawʾah) concerns something whose remaining exposed is unpleasant and whose covering is desirable. In the account of Adam, it refers to concealed parts of the body; in the account of the slain brother, its referent concerns his body or corpse. The word itself should therefore not be equated with a single fixed referent.

أَسْوَأ (aswaʾ) and السُّوأَىٰ (al-sūʾā) express more severe degrees of badness, while مُسِيء (musīʾ) is someone who acts badly.

Comparison with شر (sharr) and فحشاء (faḥshāʾ) also shows that sūʾ belongs to a broader network of words for badness in the Qur’an, without being identical to either. Sharr occupies the pole opposite khayr in the broad field of good and bad, while faḥshāʾ highlights greater ugliness. The precise differences of each root must be examined in its own separate study.

A cautious account of this family can be expressed as follows:

س و ء (S W ʾ): A linguistic family for badness, ugliness, unpleasantness, or harm that can appear in an action, condition, event, outcome, or quality. Sayyiʾah can be a bad deed or an undesirable event; sūʾ can be badness, harm, or distress; and sawʾah is something whose remaining exposed is unpleasant and whose covering is desirable. The precise meaning of each form is determined by the construction and context of the particular verse.