41 entries under adjective topic. ×

4
doubtful(unclear, questionable)
4
fishy(doubtful, suspicious)
4
questionable
4
suspicious(careless, certain, doubtful, fishy)
4
uncertain
3
ambiguous(clear, plain)
3
arguable
3
controversial
3
debatable
3
disputable(open, debatable)
3
dubious(clear, honest)
3
equivocal(uncertain, doubtful)
3
indefinite
3
moot
2
controvertible
2
dubitable
2
impugnable
2
problematic
2
problematical
2
shady
<123>
10 years ago|1.7k views|share |citing 
APASmart Define. (2016). unquestionable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/unquestionable/thesaurus/antonyms
ChicagoSmart Define. 2016. "unquestionable thesaurus" https://smartdefine.org/unquestionable/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, unquestionable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unquestionable/thesaurus/antonyms>.
MLASmart Define. "unquestionable thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/unquestionable/thesaurus/antonyms>