Synonyms of substantiate in English:

substantiate


See definition of substantiate

verb

1‘none of the allegations were ever substantiated’

SYNONYMS

prove, give proof of, show to be true, give substance to, support, uphold, back up, bear out, justify, vindicate, validate, corroborate, verify, authenticate, confirm, endorse, give credence to, lend weight to, establish, demonstrate

vouch for, attest to, testify to, stand by, bear witness to

ANTONYMS

disprove, refute