revolutionary has 5 distinct synonyms spread across 3 of its 5 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. Its one recorded opposite is counterrevolutionary.
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.
of or relating to or characteristic or causing an axial or orbital turn
advocating or engaged in revolution
“revolutionary pamphlets”
a radical supporter of political or social revolution
1 of the 5 recorded senses carries no synonym, antonym or related term, so it is not shown above. Every sense, with its definition and examples, is on the full entry for revolutionary.
Synonyms, antonyms and the broader and narrower relations for revolutionary come from Princeton University’s WordNet. Full sources and licences.