9
confirmatory(adjective, evidence, side, positive, secondary)
8
confirmative(adjective, positive, supporting, assenting)
8
confirming(adjective, positive, supporting, assenting)
8
corroboratory
7
collateral(adjective, secondary, subsidiary, indirect, ancillary)
6
substantiating
6
substantiative
6
validatory
5
affirmative(adjective, agreeable, positive, agreeing, assenting)
5
supporting(positive, secondary, subsidiary, indirect, ancillary)
5
validating
5
verificatory
4
verifying
3
agreeing(positive, assenting, confirmatory)
3
illustrative(adjective, explanatory)
3
supportive
2
assenting(positive, confirmatory)
2
auxiliary(adjective, side, secondary, subsidiary, indirect)
2
corroborant
2
indirect(adjective, side, secondary, ancillary)
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APASmart Define. (2015). corroborative thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/corroborative/thesaurus/synonyms
ChicagoSmart Define. 2015. "corroborative thesaurus" https://smartdefine.org/corroborative/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, corroborative thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/corroborative/thesaurus/synonyms>.
MLASmart Define. "corroborative thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/corroborative/thesaurus/synonyms>