The word(s) "disbelieve" appears 428 time(s) in 384 verse(s) in Quran in Muhammad Pickthal translation.

(161) And a curse was made to follow them in the world and on the Day of Resurrection. Lo! A'ad disbelieved in their Lord. A far removal for A'ad, the folk of Hud!

(162) As though they had not dwelt there. Lo! Thamud disbelieved in their Lord. A far removal for Thamud!

(163) He said: The food which ye are given (daily) shall not come unto you but I shall tell you the interpretation ere it cometh unto you. This is of that which my Lord hath taught me. Lo! I have forsaken the religion of folk who believe not in Allah and are disbelievers in the Hereafter.

(164) And if thou wonderest, then wondrous is their saying: When we are dust, are we then forsooth (to be raised) in a new creation? Such are they who disbelieve in their Lord; such have carcans on their necks; such are rightful owners of the Fire, they will abide therein.

(165) Those who disbelieve say: If only some portent were sent down upon him from his Lord! Thou art a warner only, and for every folk a guide.

(166) Unto Him is the real prayer. Those unto whom they pray beside Allah respond to them not at all, save as (is the response to) one who stretcheth forth his hands toward water (asking) that it may come unto his mouth, and it will never reach it. The prayer of disbelievers goeth (far) astray.

(167) Those who disbelieve say: If only a portent were sent down upon him from his Lord! Say: Lo! Allah sendeth whom He will astray, and guideth unto Himself all who turn (unto Him),

(168) Thus We send thee (O Muhammad) unto a nation, before whom other nations have passed away, that thou mayst recite unto them that which We have inspired in thee, while they are disbelievers in the Beneficent. Say: He is my Lord; there is no Allah save Him. In Him do I put my trust and unto Him is my recourse.

(169) Had it been possible for a Lecture to cause the mountains to move, or the earth to be torn asunder, or the dead to speak, (this Qur'an would have done so). Nay, but Allah's is the whole command. Do not those who believe know that, had Allah willed, He could have guided all mankind? As for those who disbelieve, disaster ceaseth not to strike them because of what they do, or it dwelleth near their home until the threat of Allah come to pass. Lo! Allah faileth not to keep the tryst.

(170) And verily messengers (of Allah) were mocked before thee, but long I bore with those who disbelieved. At length I seized them, and how (awful) was My punishment!