American Oxford Thesaurus
embittered
embittered adjective after twenty years of Neil's infidelity, can you blame her for being embittered? bitter, resentful, rancorous, jaundiced, aggrieved, sour, frustrated, dissatisfied, alienated, disaffected.
Sanseido Wisdom Dictionary
embittered
em b í t tered 形容詞 つらい思いをしている, 苦しんでいる, 悲しみに満ちた, 失意の .
The Wordsmith Dictionary