revolution has 2 distinct synonyms spread across 1 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.
a drastic and far-reaching change in ways of thinking and behaving
“the industrial revolution was also a cultural revolution”
the overthrow of a government by those who are governed
a single complete turn (axial or orbital)
“the plane made three rotations before it crashed”
Synonyms, antonyms and the broader and narrower relations for revolution come from Princeton University’s WordNet. Full sources and licences.