The word(s) "unjust" appears 39 time(s) in 38 verse(s) in Quran in Mohsin Khan translation.

(31) "Our Lord! Bring us out of this. If ever we return (to evil), then indeed we shall be Zalimun: (polytheists, oppressors, unjust, and wrong-doers)."

(32) Those who disbelieve say: "This (the Qur'an) is nothing but a lie that he (Muhammad صلى الله عليه وسلم) has invented, and others have helped him at it. In fact they have produced an unjust wrong (thing) and a lie."

(33) By way of reminder, and We have never been unjust.

(34) Except those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous deeds, and remember Allah much, and vindicate themselves after they have been wronged [by replying back in poetry to the unjust poetry (which the pagan poets utter against the Muslims)]. And those who do wrong will come to know by what overturning they will be overturned.

(35) Truly, We did offer Al-Amanah (the trust or moral responsibility or honesty and all the duties which Allah has ordained) to the heavens and the earth, and the mountains, but they declined to bear it and were afraid of it (i.e. afraid of Allah's Torment). But man bore it. Verily, he was unjust (to himself) and ignorant (of its results).

(36) Whosoever does righteous good deed, it is for (the benefit of) his ownself; and whosoever does evil, it is against his ownself. And your Lord is not at all unjust to (His) slaves.

(37) The Sentence that comes from Me cannot be changed, and I am not unjust to the slaves."

(38) And the people of Nuh (Noah) aforetime. Verily, they were more unjust and more rebellious and transgressing [in disobeying Allah and His Messenger Nuh (Noah) عليه السلام].