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Synonyms and Antonyms of SUBSTANTIATE

to gain full recognition or acceptance of <substantiated his claim to local mountaineering fame with a photo of himself on the summit of Mount McKinley>
Antonyms disprove
to give evidence or testimony to the truth or factualness of <Mr. MacGregor couldn't substantiate that it was Peter, and not some other rabbit, in the cabbage patch>
Related Words avouch, back (up), testify (to), vouch (for), witness; guarantee, warrant; affirm, assert, aver, avow, declare, profess; demonstrate, document, establish, prove, reinforce (also reenforce)
Antonyms disprove, rebut, refute
to represent in visible form <the artist's intense feelings are substantiated by his paintings' bold colors and broad brush strokes>
Antonyms disembody
to show the existence or truth of by evidence <substantiate the need for a tuition increase with some concrete figures>
Antonyms disprove, rebut, refute
to provide evidence or information for (as a claim or idea) <Darwin spent the rest of his life gathering evidence to substantiate his theory of the origin of species>
Synonyms back, bolster, buttress, corroborate, reinforce (also reenforce), shore (up), substantiate
Near Antonyms undercut, undermine, weaken


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