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

(61) These it was who disbelieved and debarred you from the Inviolable Place of Worship, and debarred the offering from reaching its goal. And if it had not been for believing men and believing women, whom ye know not - lest ye should tread them under foot and thus incur guilt for them unknowingly; that Allah might bring into His mercy whom He will - If (the believers and the disbelievers) had been clearly separated We verily had punished those of them who disbelieved with painful punishment.

(62) And We left behind therein a portent for those who fear a painful doom.

(63) So withdraw from them (O Muhammad) on the day when the Summoner summoneth unto a painful thing.

(64) And he who findeth not (the wherewithal), let him fast for two successive months before they touch one another; and for him who is unable to do so (the penance is) the feeding of sixty needy ones. This, that ye may put trust in Allah and His messenger. Such are the limits (imposed by Allah); and for disbelievers is a painful doom.

(65) On the likeness of those (who suffered) a short time before them, they taste the ill-effects of their own conduct, and theirs is painful punishment.

(66) O ye who believe! Shall I show you a commerce that will save you from a painful doom?

(67) Hath not the story reached you of those who disbelieved of old and so did taste the ill-effects of their conduct, and theirs will be a painful doom.

(68) Say (O Muhammad): Have ye thought: Whether Allah causeth me (Muhammad) and those with me to perish or hath mercy on us, still, who will protect the disbelievers from a painful doom?

(69) Lo! We sent Noah unto his people (saying): Warn thy people ere the painful doom come unto them.

(70) And food which choketh (the partaker), and a painful doom