Synonyms of substantiate in English:

substantiate

verb

  • none of the allegations were ever substantiated
    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
  • Definition of substantiate in:

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    Word of the day apposite
    Pronunciation: ˈapəzɪt
    adjective
    apt in the circumstances or relation to something