The word(s) "unbeliever" appears 179 time(s) in 160 verse(s) in Quran in Abdullah Yusuf Ali translation.

(91) O Prophet! Fear Allah, and hearken not to the unbelievers and the Hypocrites: verily Allah is full of Knowledge and Wisdom.

(92) That (Allah) may question the (custodians) of Truth concerning the Truth they (were charged with): And He has prepared for the unbelievers a grievous Penalty.

(93) And Allah turned back the unbelievers for (all) their fury: no advantage did they gain; and enough is Allah for the believers in their fight. And Allah is full of Strength, able to enforce His Will.

(94) And obey not (the behests) of the unbelievers and the Hypocrites, and heed not their annoyances, but put thy Trust in Allah. For enough is Allah as a Disposer of affairs.

(95) Verily Allah has cursed the unbelievers and prepared for them a Blazing Fire,-

(96) (With the result) that Allah has to punish the Hypocrites, men and women, and the unbelievers, men and women, and Allah turns in Mercy to the Believers, men and women: for Allah is Oft-Forgiving, Most Merciful.

(97) The unbelievers say, "Never to us will come the Hour": Say, "Nay! but most surely, by my Lord, it will come upon you;- by Him Who knows the unseen,- from Whom is not hidden the least little atom in the heavens or on earth: Nor is there anything less than that, or greater, but is in the Record Perspicuous:

(98) The unbelievers say (in ridicule): "Shall we point out to you a man that will tell you, when ye are all scattered to pieces in disintegration, that ye shall (then be raised) in a New Creation?

(99) The unbelievers say: "We shall neither believe in this scripture nor in (any) that (came) before it." Couldst thou but see when the wrong-doers will be made to stand before their Lord, throwing back the word (of blame) on one another! Those who had been despised will say to the arrogant ones: "Had it not been for you, we should certainly have been believers!"

(100) Those who had been despised will say to the arrogant ones: "Nay! it was a plot (of yours) by day and by night: Behold! Ye (constantly) ordered us to be ungrateful to Allah and to attribute equals to Him!" They will declare (their) repentance when they see the Penalty: We shall put yokes on the necks of the unbelievers: It would only be a requital for their (ill) Deeds.