rancor

ran·cor  (rngkr)

n.

Bitter, long-lasting resentment; deep-seated ill will. See Synonyms at enmity.

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[Middle English, from Old French, from Late Latin, rancid smell, from Latin rancre, to stink, be rotten.]

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rancor·ous adj.

rancor·ous·ly adv.

rancor·ous·ness n.

Thesaurus

Noun

1.

rancor - a feeling of deep and bitter anger and ill-will bitterness, rancour, resentment, gall ill will, enmity, hostility - the feeling of a hostile person; "he could no longer contain his hostility" heartburning - intense resentment; "his promotion caused much heartburning among his rivals" huffishness, sulkiness - a feeling of sulky resentment grievance, grudge, score - a resentment strong enough to justify retaliation; "holding a grudge"; "settling a score" enviousness, envy - a feeling of grudging admiration and desire to have something that is possessed by another