Synonyms|1.1kAntonyms|412|Broader|17Narrower|24Related|3.7k

59 entries under unlikely topic. ×

2
fanciful(adjective, fantastic, unbelievable, implausible)
2
fantastic(adjective, unbelievable, implausible, improbable)
2
impugnable(adjective, open, obscure, delicate, uncertain)
2
rare(weak, dubious, implausible, improbable)
2
thin(adjective, weak, great, extraordinary, unreasonable)
2
unreasonable(adjective, dubious, flimsy, unbelievable)
2
unsubstantial(extraordinary, unreasonable, amazing, dubious)
1
fat chance(expression, adjective, shaky, unclear)
1
hundred-to-one
1
not expected(expression, implausible)
1
not likely(expression, unreasonable, dubious, flimsy)
1
on thin ice(expression, adjective, idiom, open, delicate)
1
outside chance(expression, dubious, implausible, improbable)
1
slim
1
slim and none(expression, idiom, implausible)
0
unheard of(verb, expression, phrasal verb, implausible)
0
far out(expression, unreasonable, dubious, flimsy)
0
impracticable
0
reachy(unreasonable, dubious, flimsy, unbelievable)
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APASmart Define. (2016). doubtful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/doubtful/thesaurus/synonyms
ChicagoSmart Define. 2016. "doubtful thesaurus" https://smartdefine.org/doubtful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, doubtful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/doubtful/thesaurus/synonyms>.
MLASmart Define. "doubtful thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/doubtful/thesaurus/synonyms>