The word(s) "painful" appears 73 time(s) in 73 verse(s) in Quran in Muhammad Pickthal translation.

(41) Lo! those who disbelieve and bar (men) from the way of Allah and from the Inviolable Place of Worship, which We have appointed for mankind together, the dweller therein and the nomad: whosoever seeketh wrongful partiality therein, him We shall cause to taste a painful doom.

(42) Lo! those who love that slander should be spread concerning those who believe, theirs will be a painful punishment in the world and the Hereafter. Allah knoweth. Ye know not.

(43) Make not the calling of the messenger among you as your calling one of another. Allah knoweth those of you who steal away, hiding themselves. And let those who conspire to evade orders beware lest grief or painful punishment befall them.

(44) And Noah's folk, when they denied the messengers, We drowned them and made of them a portent for mankind. We have prepared a painful doom for evil-doers.

(45) They will not believe in it till they behold the painful doom,

(46) Those who disbelieve in the revelations of Allah and in (their) Meeting with Him, such have no hope of My mercy. For such there is a painful doom.

(47) And when Our revelations are recited unto him he turneth away in pride as if he heard them not, as if there were a deafness in his ears. So give him tidings of a painful doom.

(48) That He may ask the loyal of their loyalty. And He hath prepared a painful doom for the unfaithful.

(49) But those who strive against Our revelations, challenging (Us), theirs will be a painful doom of wrath.

(50) Lo! (now) verily ye taste the painful doom -