substantiate
verb
sub·stan·ti·ate səb-ˈstan(t)-shē-ˌāt 
substantiated; substantiating
transitive verb
1
: to give substance or form to : embody
2
: to establish by proof or competent evidence : verify
substantiate a charge
substantiation
səb-ˌstan(t)-shē-ˈā-shən
noun substantiative
səb-ˈstan(t)-shē-ˌā-tiv
adjective 
Synonyms
- demonstrate
- establish
- prove
- show
See all Synonyms & Antonyms 
Example Sentences
substantiated his claim to local mountaineering fame with a photo of himself on the summit of Mount McKinley Mr. MacGregor couldn't substantiate that it was Peter, and not some other rabbit, in the cabbage patch.
Recent Examples on the Web Officials didn't find something to substantiate the allegations, the Sheriff's Office said in a news release. 
Angela Cordoba Perez, The Arizona Republic, 1 Sep. 2022 There is no evidence to substantiate any of the fraud claims involving Smartmatic or Dominion, whose machines are used in 28 states and controls about 30% of the U.S. market for voting machines, according to data cited by ProPublica in 2019. Alison Durkee, Forbes, 21 June 2022 But again, there’s no evidence to substantiate such claims. Los Angeles Times, 21 May 2022 However, federal investigators found that several of the motorcyclists and passengers were under the influence of alcohol but did not substantiate the cause of the crash. Fox News, 26 July 2022 This was never anything more than a troubled individual making false allegations with absolutely nothing to substantiate them. J. Kim Murphy, Variety, 21 July 2022 This was never anything more than a troubled individual making false allegations with absolutely nothing to substantiate them. Justine Browning, EW.com, 21 July 2022 The defense hasn’t directly challenged the FBI’s finding that the research didn’t substantiate the allegation of a Trump-Russia link. Aruna Viswanatha, WSJ, 25 May 2022 And the committee has provided reams of evidence to substantiate the allegations that Trump staged a multi-pronged effort to overturn the 2020 election. Dean Obeidallah, CNN, 27 June 2022 See More
Angela Cordoba Perez, The Arizona Republic, 1 Sep. 2022 There is no evidence to substantiate any of the fraud claims involving Smartmatic or Dominion, whose machines are used in 28 states and controls about 30% of the U.S. market for voting machines, according to data cited by ProPublica in 2019. Alison Durkee, Forbes, 21 June 2022 But again, there’s no evidence to substantiate such claims. Los Angeles Times, 21 May 2022 However, federal investigators found that several of the motorcyclists and passengers were under the influence of alcohol but did not substantiate the cause of the crash. Fox News, 26 July 2022 This was never anything more than a troubled individual making false allegations with absolutely nothing to substantiate them. J. Kim Murphy, Variety, 21 July 2022 This was never anything more than a troubled individual making false allegations with absolutely nothing to substantiate them. Justine Browning, EW.com, 21 July 2022 The defense hasn’t directly challenged the FBI’s finding that the research didn’t substantiate the allegation of a Trump-Russia link. Aruna Viswanatha, WSJ, 25 May 2022 And the committee has provided reams of evidence to substantiate the allegations that Trump staged a multi-pronged effort to overturn the 2020 election. Dean Obeidallah, CNN, 27 June 2022 See More Word History
First Known Use
1610, in the meaning defined at sense 1
substantiating 1 of 2
adjective
as in supporting
serving to give support to the truth or factualness of something without some substantiating evidence, such as a stub from a bus ticket, who's going to believe your alibi? Synonyms & Similar Words
Relevance
- supporting
- confirming
- verifying
- supportive
- corroborating
- vindicating
- corroborative
- confirmational
- probative
- confirmatory
- supplementary
- probatory
- corroboratory
- auxiliary
- beneficial
- helpful
Antonyms & Near Antonyms
- disproving
- refuting
- contradictory
- opposing
- contrary
- counter
- confuting
substantiating
2 of 2verb
1
as in proving
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 & Similar Words
- proving
- establishing
- demonstrating
- showing
- confirming
- evidencing
- documenting
- verifying
- justifying
- attesting
- corroborating
- sustaining
- upholding
- validating
- supporting
- authenticating
- bearing out
Antonyms & Near Antonyms
- disproving
- refuting
- invalidating
- rebutting
- discrediting
- confuting
2
as in verifying
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 & Similar Words
- verifying
- confirming
- supporting
- arguing
- corroborating
- validating
- proving
- attesting
- vindicating
- certifying
- demonstrating
- authenticating
- establishing
- witnessing
- affirming
- bearing out
- reinforcing
- documenting
- asserting
- guaranteeing
- declaring
- averring
- warranting
- avowing
- professing
- testifying (to)
- reenforcing
- avouching
- vouching (for)
- backing (up)
Antonyms & Near Antonyms
- refuting
- disproving
- rebutting
- contradicting
- denying
- disclaiming
- disavowing
- contesting
- disputing
- questioning
- challenging
- gainsaying
3
as in embodying
to represent in visible form the artist's intense feelings are substantiated by his paintings' bold colors and broad brush strokes Synonyms & Similar Words
- embodying
- expressing
- incorporating
- illustrating
- exemplifying
- manifesting
- symbolizing
- personalizing
- realizing
- personifying
- externalizing
- instantiating
- actualizing
- materializing
- epitomizing
- bodying
- incarnating
- objectifying
- concretizing
- typifying
- imaging
Antonyms & Near Antonyms
- disembodying
4
as in establishing
to show the existence or truth of by evidence substantiate the need for a tuition increase with some concrete figures Synonyms & Similar Words
- proving
- establishing
- demonstrating
- documenting
- validating
- verifying
- confirming
- identifying
- corroborating
- evidencing
- supporting
- buttressing
- adducing
- attesting
- upholding
- recording
- certifying
- sustaining
- vouching
- evincing
- authenticating
- testifying
- witnessing
- circumstantiating
- clinching
- confessing
- deposing
- nailing
- backing (up)
- settling
Antonyms & Near Antonyms
- refuting
- disproving
- rebutting
- objecting
- disputing
- challenging
- alleging
- assuming
- suspecting
- presuming
- guessing
- conjecturing
- surmising
5
as in reinforcing
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 & Similar Words
- reinforcing
- bolstering
- proving
- supporting
- corroborating
- confirming
- buttressing
- establishing
- verifying
- backing
- reenforcing
- validating
- affirming
- shoring (up)
- avouching
Antonyms & Near Antonyms
- undermining
- weakening
- undercutting
- moral compasses
- moral hazard
- moral imbecility
- moral influence theory
- moral insanity
- moral law
- moral philosophy
- moral re-armament
- moral sense
- moral support
- moral theology
- moral theory
- moral victory
- moral virtue
- morale
- moraler
- morales
- Morales (Ayma)
- morales ayma
- moralest
- moralisation
- moralisations
- moralise
- moralised
- moraliser