progressive has 8 distinct synonyms spread across 3 of its 8 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 regressive.
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.
favoring or promoting progress
“progressive schools”
favoring or promoting reform (often by government action)
(of taxes) adjusted so that the rate increases as the amount of income increases
a tense of verbs used in describing action that is on-going
3 of the 8 recorded senses carry no synonym, antonym or related term, so they are not shown above. Every sense, with its definition and examples, is on the full entry for progressive.
Synonyms, antonyms and the broader and narrower relations for progressive come from Princeton University’s WordNet. Full sources and licences.
a person who favors a political philosophy of progress and reform and the protection of civil liberties