choler has 9 distinct synonyms spread across 3 of its 3 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
an irritable petulant feeling
a strong emotion; a feeling that is oriented toward some real or supposed grievance
a humor that was once believed to be secreted by the liver and to cause irritability and anger
Synonyms, antonyms and the broader and narrower relations for choler come from Princeton University’s WordNet. Full sources and licences.