Categories October Surprise 2024 SUPPORTIVE Synonyms: 23 Similar and Opposite Words | Merriam-Webster … Post author By Post date July 23, 2025 Synonyms for SUPPORTIVE: supporting, confirming, confirmational, substantiating, verifying, supplementary, corroborative, confirmatory; Antonyms of SUPPORTIVE: contradictory, opposing, refuting, counter, contrary, disproving, confuting