vaporise 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.
cause to change into a vapor
“The chemist evaporated the water”
change into a vapor
“The water evaporated in front of our eyes”
lose or cause to lose liquid by vaporization leaving a more concentrated residue
“evaporate milk”
Synonyms, antonyms and the broader and narrower relations for vaporise come from Princeton University’s WordNet. Full sources and licences.