FreeVocabulary
Rancorous
/ˈræŋkərəs/ adjective mediumFilled with deep, lingering bitterness or hostility.
The divorce proceedings turned rancorous after both sides accused each other of hiding money.
Memory Trick
Rancorous sounds like 'rancid' -- just as rancid food has gone sour, a rancorous feud has soured into lasting resentment.