Synonyms|786Antonyms|286|Broader|13Narrower|11Related|3k

56 entries under unlikely topic. ×

5
hazardous(adjective, shaky, unpromising)
4
speculative(doubtful, shaky, vague, unsure, imaginary)
4
thin(adjective, weak, great, extraordinary, amazing)
4
unstable(adjective, open, obscure, uncertain, unsettled)
4
weak(adjective, great, extraordinary, amazing, doubtful)
3
dicey(adjective, shaky, unpromising)
3
fantastic(adjective, unbelievable, improbable)
3
impossible(adjective, extraordinary, amazing, unbelievable)
3
touch-and-go(adjective, shaky, unpromising)
2
fanciful(adjective, doubtful, implausible)
2
impugnable(shaky, unpromising)
2
unimaginable(extraordinary, amazing, doubtful, dubious)
2
unpromising
2
unreasonable(adjective, unbelievable, improbable)
1
for the birds(expression, idiom, extraordinary, amazing)
1
full of holes(expression, idiom, extraordinary, amazing)
1
hundred-to-one(doubtful, implausible)
1
not expected(expression, doubtful, implausible)
1
not likely(expression, doubtful, dubious, implausible)
1
on thin ice(expression, idiom, doubtful, shaky, vague)
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APASmart Define. (2015). questionable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/questionable/thesaurus/synonyms
ChicagoSmart Define. 2015. "questionable thesaurus" https://smartdefine.org/questionable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, questionable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/questionable/thesaurus/synonyms>.
MLASmart Define. "questionable thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/questionable/thesaurus/synonyms>