Kitab-i-badi - Baha'u'llah's use of severe and abusive words for those who denied or rejected him

In Kitab-i-Badi, Baha'u'llah used many severe and abusive words for those who denied or rejected him, this includes the likes of Mírzá Yaḥyá and his followers and Muḥammad Siyyid and his followers.

The words include:

Terms of Polytheism, Apostasy, and Disbelief:

• مُشْرِك / مُشْرِكِين (Polytheist, Associator)
• انْفُس مُشْرِكَه (Polytheistic souls/selves)
• فَرعونیّه انْفُس مُشْرِكَه (Pharaonic polytheistic souls)
• مُشْرِك بالله (Polytheist in God)
• نَفْس مُشْرِك (Polytheistic soul)
• كفروا و أشركوا (They disbelieved and associated partners)
• كُفَّارٍ أثيم (Sinful disbeliever)
• مُلْحِد (Heretic/Atheist)
• مُرتَد (Apostate - implied in târik, mafqud)

Terms of Denial and Opposition (Rejection):

• مُعْرِض / مُعْرِضِين (Rejecter/Averse one)
• مُنْكِر / مُنْكِرِين (Denier)
• أهل انكار (People of denial)
• جَاحِدَان (Deniers/Apostates - implied in root)
• مُعْتَرِض / مُعْتَرِضِين (Objector/Protester)
• مُحارب (Warrer/Combatant)

Terms of Malice, Falsehood, and Deception:

• ظَالِم / الظَّالِمِينَ (Oppressor/Wrongdoer)
• خَائِن (Traitor/Treacherous one)
• كَاذِب / الْكَاذِبِينَ (Liar)
• مُفْتَرِي / الْمُفْتَرِينَ (Slanderer/Fabricator)
• كذب صِرف (Pure falsehood)
• مفتری خبيث (Malicious slanderer)
• مُجْرِمُون (Criminals/Sinners)
• فَاجِر / فَجَّار (Wicked/Impious one)
• فَاسِقِين (Wicked ones/Impious ones)
• فَاسِقَه (Wicked woman/Impious one - specific application)
• خَبِيث / خَبِيثَه (Malicious/Evil one)
• أَشْرَار (Wicked ones)
• مُفْسِد / مُفْسِدِين (Corrupter/Depraved one)
• مَكَّار (Plotter/Deceiver)
• غَلّ مَنْبَع (Source of malice/rancor)
• بَحْر الغرض (Ocean of motive/self-interest)
• أفّ (Woe/Shame/Contempt)

Terms of Ignorance, Folly, and Mental Delusion:

• غَافِل / غَافِلِين (Heedless one)
• جَاهِل / جَاهِلِين (Ignorant one)
• نَادَانَان (Ignorant ones)
• الْعَوَّام (Common/Ignorant people - implying lack of spiritual status)
• أحْمَق / حمقاء (Fool/Idiot)
• مُتَوَهَّم / مُتَوَهَّمِين (Illusion-monger/Deluded one)
• نُفُوس مُتَوَهِّمَه (Illusory souls)
• أَوْهَام / ظُنُون (Illusions/Vain imaginings/Conjectures)
• أَوْهَام أَصْنَام (Idols of illusions)
• ظُنُونِيَّه هَيَاكِل (Illusory temples/bodies)
• بَصَر بِي (O ye devoid of sight)
• أصمّ باطنی / كر حقيقی (Inward deaf one / Real deaf one)
• رَمَد أوْهَام (Ophthalmia/Sickness of vain imaginings)
• بَرَهُوت (Hellish pit/Abode of foul air)
• هذيانات وهميّه نفسيّه (Illusory, self-generated ravings/delusions)

Terms of Baseness, Wretchedness, and Extremism:

• مُغَلِّين / مُغِلّ (Extremists/Exaggerators)
• أَرَاذِل / أراذِلُنا (Vile/Base ones / Our lowest people)
• رَذِيلَه نُفُوس (Base/Vile souls)
• أَرْذَل وُجُود (Vile of existence/creation)
• أَقْبَح (Ugliest)
• أَشْقِيَاء / شَقِیّ (Wretched/Miserable ones)
• خَائِب (Failing one)
• خَاسِر / الأخْسَرين (Losing one / The most losing)
• نُفُوس پژمرده محرومه (Withered, deprived souls)
• أُجَاج مِلح (Saltish/Bitter water)
• مَرْدُود (Rejected/Reprobate)
• أسفل السّافلين (Lowest of the low/Lowest abyss)
• نِيرَان أَسْفَل (Lowest fires/Hell)
• خُسراناً لكم (Loss/Woe unto you)
• ناراً عليكم (Fire upon you)
• يَلْعَنُهُ كلُّ الذّرّات (Whom every atom curses)

Animalistic and Idol-Related Metaphors:

• شَيْطَان / شَيَاطِين (Satan / Satans)
• مظاهر خنّاس (Manifestations of the Lurking Whisperer/Satan)
• عِجْل / عِجْلٌ جَسَدٌ لَهُ خُوَار (Calf / Calf, a body having a lowing sound/Idol)
• تعبدون البقر (You worship the cattle/oxen)
• جِبْت (Idol/Magic)
• الطَّاغُوت (Tyranny/Idol)
• ذِئَاب / ذِئَابِ النّفس و الهوی (Wolves / Wolves of self and passion)
• طُيُور ظُلْمَانِی (Dark/Obscurantist birds)
• زاغ ارض جرزه (Crow of the barren land)
• طَنِين ذُباب (Buzzing of a fly)
• كَلْب (Dog)
• حَمِير (Asses/Donkeys)
• شِرذِمَة الخنازير (Band of swine)
• جُعَل (Dung beetle)
• حِمارِ يَحمِلُ أسفاراً (Ass carrying books)
• خدع نسناسيّه (Deceits of the Nanâs/ape-like creatures)

Contemptuous Phrases:

• صِبْيَان كَلِمَات / مِثْل كَلِمَات صِبْيَان (Words of children)
• رَنُود (Rascals/Rogues)
• شَبَح (Spectre/Phantom)
• أظلال (Shadows)
• نُباحِ هؤلاء و قُِباعِهِم (Barking/Snarling of these ones)
• عَاصِی (Rebellious one)
• بَاطِل (False/Vain thing)
• مُغْرُور دارالغرور (Arrogant one of the abode of delusion)

https://oceanoflights.org/bahaullah-st-016-fa/

https://oceanoflights.org/file/autogenerated/bahaullah-st-016_fa.pdf