The word(s) "disbelief" appears 5 time(s) in 5 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) Surely (as for) those who believe then disbelieve, again believe and again disbelieve, then increase in disbelief, Allah will not forgive them nor guide them in the (right) path.

(2) Therefore, for their breaking their covenant and their disbelief in the communications of Allah and their killing the prophets wrongfully and their saying: Our hearts are covered; nay! Allah set a seal upon them owing to their unbelief, so they shall not believe except a few.

(3) He who disbelieves in Allah after his having believed, not he who is compelled while his heart is at rest on account of faith, but he who opens (his) breast to disbelief-- on these is the wrath of Allah, and they shall have a grievous chastisement.

(4) Whoever disbelieves, he shall be responsible for his disbelief, and whoever does good, they prepare (good) for their own souls,

(5) And whoever disbelieves, let not his disbelief grieve you; to Us is their return, then will We inform them of what they did surely Allah is the Knower of what is in the breasts.