Synonyms|786Antonyms|286|Broader|13Narrower|11Related|3k
2
trusted(verb, adjective, sure, trustworthy, faithful)
2
unambiguous
2
unanswerable
2
unchallengeable
2
undisputed
2
undoubted(adjective, undisputed)
2
unequivocal
2
unimpeachable
1
accepted
1
apparent(adjective, real, seeming)
1
assured
1
authoritative
1
axiomatic(adjective, understood, aphoristic)
1
beyond doubt
1
convincing
1
downright
1
earthly
1
explicit(adjective, false, uncertain, implicit)
1
for sure
1
good
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APASmart Define. (2015). questionable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/questionable/thesaurus/antonyms
ChicagoSmart Define. 2015. "questionable thesaurus" https://smartdefine.org/questionable/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, questionable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/questionable/thesaurus/antonyms>.
MLASmart Define. "questionable thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/questionable/thesaurus/antonyms>