heller has 4 distinct synonyms spread across 4 of its 4 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.
Synonyms, antonyms and the broader and narrower relations for heller come from Princeton University’s WordNet. Full sources and licences.
United States novelist whose best known work was a black comedy inspired by his experiences in the Air Force during World War II (1923-1999)
a rowdy or mischievous person (usually a young man)
“he chased the young hellions out of his yard”