Synonyms|128Antonyms|36|Broader|4Narrower|2Related|196

67 entries under substantiate topic. ×

1
exonerate(support, favor, defend, explain)
1
explain(verb, support, defend, validate)
1
favor(support, defend, explain, validate)
1
give stamp of approval(expression, idiom, endorse, prove)
1
give the go-ahead(expression, idiom, endorse, prove)
1
give the green light(expression, idiom, endorse, prove, verify)
1
give the nod(expression, idiom, endorse, prove)
1
maintain(support, favor, defend, explain)
1
make allowances(verb, expression, support, favor, sustain)
1
make binding(expression, endorse, prove, verify)
1
make good(verb, expression, support, favor, sustain)
1
make stick(expression, endorse, prove, verify)
1
okay(allow, authorize, sanction, endorse, prove)
1
palliate(verb, favor, sustain, confirm, defend)
1
pardon(verb, support, favor, sustain, confirm)
1
plead(support, favor, defend, explain)
1
rationalize(verb, support, favor, defend, explain)
1
rebut(verb, support, favor, sustain, confirm)
1
show cause(verb, expression, support, favor, sustain)
1
sign off on(expression, idiom, endorse, prove)
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APASmart Define. (2015). legitimize thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/legitimize/thesaurus/synonyms
ChicagoSmart Define. 2015. "legitimize thesaurus" https://smartdefine.org/legitimize/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, legitimize thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/legitimize/thesaurus/synonyms>.
MLASmart Define. "legitimize thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/legitimize/thesaurus/synonyms>