Synonyms|673Antonyms|118|Broader|13Narrower|17Related|401
5
show
4
demonstrate
4
establish
4
prove
4
shew
4
validate
3
back
3
back up
3
document
3
verify
3
vouch
2
authenticate
2
bolster
2
make legal(verb, approve, confirm, affirm, license)
1
corroborate
1
incarnate
1
strengthen
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APASmart Define. (2015). substantiate thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/substantiate/thesaurus/narrower
ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/narrower (accessed September 20, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/substantiate/thesaurus/narrower>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/substantiate/thesaurus/narrower>