Synonyms|451Antonyms|268|Broader|4Narrower|8Related|1.1k
2
poor
2
rare(adjective, light, obscure, thin, extraordinary)
2
refutable
2
separately
2
shady(adjective, open, obscure, uncertain, doubtful)
2
speculative(shaky, unpromising)
2
suspicious(adjective, open, obscure, uncertain, doubtful)
2
unequally
2
unheard-of(adjective, obscure, extraordinary, strange, doubtful)
2
unreal(adjective, fantastic, imaginary, unbelievable, idealistic)
2
unusual
2
unworkable(adjective, idealistic, improbable)
2
variously
2
weak(extraordinary, strange, doubtful, unbelievable, implausible)
1
anomalously
1
at long odds(expression, idiom)
1
belief(extraordinary, strange, unbelievable, implausible, unthinkable)
1
below par(expression, adjective, inadequate, useless, inappropriate)
1
beyond belief(expression, adjective, unbelievable, unthinkable, unimaginable)
1
beyond reason(expression, extraordinary, strange, unbelievable, implausible)
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HarvardSmart Define 2015, unlikely thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/unlikely/thesaurus/synonyms>.
MLASmart Define. "unlikely thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/unlikely/thesaurus/synonyms>