Synonyms and Antonyms of substantiate

  1. 1 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 Synonyms of substantiate demonstrate, prove, show, establishWords Related to substantiate attest, authenticate, bear out, document, evidence, support, sustain, uphold; confirm, corroborate, justify, validate, verifyNear Antonyms of substantiate confute, discredit, invalidate, rebut, refuteAntonyms of substantiate disprove

  2. 2 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 Synonyms of substantiate argue, attest, authenticate, bear out, certify, corroborate, confirm, support, validate, verify, vindicateWords Related to substantiate avouch, back (up), testify (to), vouch (for), witness; guarantee, warrant; affirm, assert, aver, avow, declare, profess; demonstrate, document, establish, prove, reinforce (also reenforce)Near Antonyms of substantiate contradict, gainsay; deny, disavow, disclaim; challenge, contest, dispute, questionAntonyms of substantiate disprove, rebut, refute

  3. 3 to represent in visible form the artist's intense feelings are substantiated by his paintings' bold colors and broad brush strokes Synonyms of substantiate body, epitomize, express, externalize, incarnate, incorporate, instantiate, manifest, materialize, personalize, personify, embodyWords Related to substantiate actualize, concretize, realize; exemplify, illustrate, image, objectify, symbolize, typifyAntonyms of substantiate disembody

  4. 4 to show the existence or truth of by evidence substantiate the need for a tuition increase with some concrete figures Synonyms of substantiate demonstrate, document, establish, prove, validateWords Related to substantiate back (up), buttress, circumstantiate, corroborate; evidence, evince, record, support, uphold, witness; adduce, attest, authenticate, certify, identify; confirm, sustain, verify, vouch; clinch, nail, settle; confess, depose, testifyNear Antonyms of substantiate challenge, dispute, object; allege, assume, conjecture, guess, presume, surmise, suspectAntonyms of substantiate disprove, rebut, refute

  5. 5 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 of substantiate back, bolster, buttress, corroborate, reinforce (also reenforce), shore (up), supportWords Related to substantiate confirm, establish, prove, verify; affirm, avouch, validateNear Antonyms of substantiate undercut, undermine, weaken

Seen and Heard

What made you want to look up substantiate? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


pleasing or sweet sound

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!