The word(s) "bitter" appears 5 time(s) in 5 verse(s) in Quran in Saheeh International translation.

(1) And it is He who has released [simultaneously] the two seas, one fresh and sweet and one salty and bitter, and He placed between them a barrier and prohibiting partition.

(2) But they turned away [refusing], so We sent upon them the flood of the dam, and We replaced their two [fields of] gardens with gardens of bitter fruit, tamarisks and something of sparse lote trees.

(3) And not alike are the two bodies of water. One is fresh and sweet, palatable for drinking, and one is salty and bitter. And from each you eat tender meat and extract ornaments which you wear, and you see the ships plowing through [them] that you might seek of His bounty; and perhaps you will be grateful.

(4) But the Hour is their appointment [for due punishment], and the Hour is more disastrous and more bitter.

(5) If We willed, We could make it bitter, so why are you not grateful?