embittered[adjective]Synonyms: resentful, angry, bitter, disaffected, disillusioned, rancorous, soured, with a chip on one's shoulder
(informal) [TahlilGaran] English Synonym Dictionary ▲
em‧bit‧tered /ɪmˈbɪtə $ -ər/
adjective angry, sad, or full of hate because of bad or unfair things that have happened to you
Synonym : bitter:
a sick, embittered, and lonely old man—embitter verb [transitive] [TahlilGaran] Dictionary of Contemporary English ▲