The word(s) "disbelieve" appears 631 time(s) in 561 verse(s) in Quran in Mohsin Khan translation.

(381) Burn therein this Day, for that you used to disbelieve.

(382) That he or it (Muhammad صلى الله عليه وسلم or the Qur'an) may give warning to him who is living (a healthy minded - the believer), and that Word (charge) may be justified against the disbelievers (dead, as they reject the warnings).

(383) "And we had no authority over you. Nay! But you were Taghun (transgressing) people (polytheists, and disbelievers).

(384) Certainly, that is how We deal with Al-Mujrimun (polytheists, sinners, disbelievers, criminals, the disobedient to Allah).

(385) Truly We have made it (as) a trail for the Zalimun (polytheists, disbelievers, wrong-doers).

(386) Then We drowned the others (disbelievers and polytheists).

(387) But (now that the Qur'an has come) they disbelieve therein (i.e. in the Qur'an and in Prophet Muhammad صلى الله عليه وسلم , and all that he brought, - the Divine Revelation), so they will come to know!

(388) Nay, those who disbelieve are in false pride and opposition.

(389) And they (Arab pagans) wonder that a warner (Prophet Muhammad صلى الله عليه وسلم) has come to them from among themselves. And the disbelievers say: "This (Prophet Muhammad صلى الله عليه وسلم) is a sorcerer, a liar.

(390) And We created not the heaven and the earth and all that is between them without purpose! That is the consideration of those who disbelieve! Then woe to those who disbelieve (in Islamic Monotheism) from the Fire!