4
impermeable(adjective, tight, impervious, hermetic)
4
investigation(noun, study, check, measure, struggle)
4
materialization(noun, appearance, display, manifestation, index)
4
premise(noun, support, action, cause, reason)
4
presentation(noun, display, illustration, manifestation)
4
print(noun, verb, feature, characteristic, mark)
4
probe(noun, experiment)
4
record(noun, drop, mark, touch, taste)
4
revelation(noun, appearance, display, manifestation, index)
4
scoop(noun, information, knowledge, informal, picture)
4
statement(noun, cover, reason, idea, case)
4
test copy(noun, expression, idiom)
4
title(noun, power, right, permit, record)
4
trial print(noun, expression, idiom, pass, impression)
3
airtight(adjective, tight, impervious, hermetic)
3
analysis(noun, study, check, measure, struggle)
3
bombproof
3
check(noun, study, measure, struggle, approval)
3
cogent evidence(noun, expression, idiom)
3
dampproof(adjective, tight, impervious, hermetic)
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APASmart Define. (2015). proof thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/proof/thesaurus/synonyms
ChicagoSmart Define. 2015. "proof thesaurus" https://smartdefine.org/proof/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, proof thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/proof/thesaurus/synonyms>.
MLASmart Define. "proof thesaurus" 22 December 2015. Web. 22 September 2026. <https://smartdefine.org/proof/thesaurus/synonyms>