attractor has 6 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 entertainer who attracts large audiences
“he was the biggest drawing card they had”
(physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of the starting conditions of the system
Synonyms, antonyms and the broader and narrower relations for attractor come from Princeton University’s WordNet. Full sources and licences.
a characteristic that provides pleasure and attracts
“flowers are an attractor for bees”