BITTER Synonyms: 446 Similar and Opposite Words - Merriam-Webster
https://www.merriam-webster.com/thesaurus/bitter
WEBSynonyms for BITTER: angry, sore, cynical, embittered, resentful, acrimonious, acrid, rancorous; Antonyms of BITTER: sweet, warm, sympathetic, loving, gentle, kind, unbitter, forgiving
DA: 81 PA: 78 MOZ Rank: 97