The word(s) "perverse" appears 4 time(s) in 4 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) We have sent down to thee Manifest Signs (ayat); and none reject them but those who are perverse.

(2) The Hypocrites, men and women, (have an understanding) with each other: They enjoin evil, and forbid what is just, and are close with their hands. They have forgotten Allah; so He hath forgotten them. Verily the Hypocrites are rebellious and perverse.

(3) Whether thou ask for their forgiveness, or not, (their sin is unforgivable): if thou ask seventy times for their forgiveness, Allah will not forgive them: because they have rejected Allah and His Messenger: and Allah guideth not those who are perversely rebellious.

(4) Nor do thou ever pray for any of them that dies, nor stand at his grave; for they rejected Allah and His Messenger, and died in a state of perverse rebellion.