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

356 entries under adjective topic. ×

2
silly
2
thick(great, extraordinary, amazing, doubtful)
2
thin(weak, great, extraordinary, unreasonable)
2
touch-and-go
2
unapt
2
unconfident(uncertain, nervous, doubtful, suspicious)
2
undefined(uncertain, doubtful, vague, unknown)
2
underhanded(dishonest, unpredictable, fickle, suspicious)
2
unfaithful(false, dishonest, deceitful, unpredictable)
2
unhealthy(delicate, uncertain, unstable, doubtful)
2
unrealistic
2
unreasonable(unlikely, flimsy, unbelievable, improbable)
2
unspecified(rough, vague, unknown, unclear)
2
unsubstantiated(questionable, unproven)
2
unsupported(questionable, unsubstantiated, unconfirmed, uncorroborated)
2
untrue(false, dishonest, deceitful, unpredictable)
1
abject
1
accident-sensitive(unreliable, insecure, treacherous, incalculable)
1
apathetic(unfaithful, disloyal)
1
apprehensive(anxious, nervous, worried, troubled)
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APASmart Define. (2016). dubious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/dubious/thesaurus/synonyms
ChicagoSmart Define. 2016. "dubious thesaurus" https://smartdefine.org/dubious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, dubious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/dubious/thesaurus/synonyms>.
MLASmart Define. "dubious thesaurus" 4 March 2016. Web. 25 September 2026. <https://smartdefine.org/dubious/thesaurus/synonyms>