Synonyms|786Antonyms|286|Broader|13Narrower|11Related|3k
3
plausible
3
sure
3
unarguable
3
undeniable
2
accomplished
2
accurate
2
conceivable
2
distinct
2
imaginable
2
inarguable
2
indubitable
2
irrefragable
2
liable
2
likely
2
lucid
2
mathematical
2
obvious
2
perspicuous
2
precise(adjective, exact, accurate)
2
probable
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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>