acharne
/ætˌkɑrnəmənt/Definitions
1. noun
A state of being deeply resentful or bitter about a situation.
“Her acharnement towards her former employer was palpable at the reunion.”
2. noun
A state of intense bitterness, resentment, or ill will.
“The acharnement she felt towards her ex-husband was a major factor in her therapy.”
3. verb
To feel intense bitterness, resentment, or ill will.
“She acharned her ex-husband for years after the divorce.”