Synonyms|930Antonyms|415|Broader|15Narrower|12Related|3.8k

60 entries under questionable topic. ×

4
open to question(expression, adjective, idiom, uncertain, doubtful)
3
dicey(adjective, delicate, uncertain, unstable, irregular)
3
hazardous(adjective, open, delicate, uncertain, unstable)
3
inconclusive(adjective, clear, certain, uncertain, doubtful)
2
unconfirmed(uncertain, doubtful, vague, unclear, unsure)
2
unsubstantiated(adjective, unproven)
2
unsupported(adjective, unsubstantiated, unconfirmed, uncorroborated)
1
contingent(adjective, delicate, uncertain, unstable, doubtful)
1
delicate(adjective, weak, uncertain, unstable, doubtful)
1
impugnable(adjective, open, delicate, uncertain, unstable)
1
mootable(adjective, uncertain, doubtful, unsure)
1
on thin ice(expression, adjective, idiom, delicate, uncertain)
1
sneaky(adjective, open, obscure, uncertain, dishonest)
1
touchy(adjective, open, obscure, delicate, uncertain)
1
up for grabs(expression, adjective, idiom, uncertain, nervous)
0
contentious(doubtful, provocative, debatable, debated)
0
far from certain(expression, idiom, debatable)
0
not dependable(expression, adjective, false, uncertain, dishonest)
0
not reliable(expression, unsupported)
0
sub judice(expression, debatable)
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APASmart Define. (2016). dubious thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dubious/thesaurus/synonyms
ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 22 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>