The word(s) "bitter" appears 3 time(s) in 3 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) But they turned aside, so We sent upon them a torrent of which the rush could not be withstood, and in place of their two gardens We gave to them two gardens yielding bitter fruit and (growing) tamarisk and a few lote-trees.

(2) Surely We sent on them a tornado in a day of bitter ill-luck

(3) Nay, the hour is their promised time, and the hour shall be most grievous and bitter.