The word(s) "disbelieve" appears 269 time(s) in 248 verse(s) in Quran in Muhammad Habib Shakir translation.

(101) They swear by Allah that they did not speak, and certainly they did speak, the word of unbelief, and disbelieved after their Islam, and they had determined upon what they have not been able to effect, and they did not find fault except because Allah and His Apostle enriched them out of His grace; therefore if they repent, it will be good for them; and if they turn back, Allah will chastise them with a painful chastisement in this world and the hereafter, and they shall not have in the land any guardian or a helper.

(102) Ask forgiveness for them or do not ask forgiveness for them; even if you ask forgiveness for them seventy times, Allah will not forgive them; this is because they disbelieve in Allah and His Apostle, and Allah does not guide the transgressing people.

(103) And never offer prayer for any one of them who dies and do not stand by his grave; surely they disbelieve in Allah and His Apostle and they shall die in transgression.

(104) And the defaulters from among the dwellers of the desert came that permission may be given to them and they sat (at home) who lied to Allah and His Apostle; a painful chastisement shall afflict those of them who disbelieved.

(105) To Him is your return, of all (of you); the promise of Allah (made) in truth; surely He begins the creation in the first instance, then He reproduces it, that He may with justice recompense those who believe and do good; and (as for) those who disbelieve, they shall have a drink of hot water and painful punishment because they disbelieved.

(106) (It is only) a provision in this world, then to Us shall be their return; then We shall make them taste severe punishment because they disbelieved.

(107) And He it is Who created the heavens and the earth in six periods-- and His dominion (extends) on the water-- that He might manifest to you, which of you is best in action, and if you say, surely you shall be raised up after death, those who disbelieve would certainly say: This is nothing but clear magic.

(108) Is he then who has with him clear proof from his Lord, and a witness from Him recites it and before it (is) the Book of Musa, a guide and a mercy? These believe in it; and whoever of the (different) parties disbelieves in it, surely it is the truth from your Lord, but most men do not believe.

(109) Who turn away from the path of Allah and desire to make it crooked; and they are disbelievers in the hereafter.

(110) But the chiefs of those who disbelieved from among his people said: We do not consider you but a mortal like ourselves, and we do not see any have followed you but those who are the meanest of us at first thought and we do not see in you any excellence over us; nay, we deem you liars.