Synonyms|453Antonyms|53|Broader|4Narrower|9Related|258

44 entries under implausible topic. ×

2
thin(adjective, light, extraordinary, strange, amazing)
1
belief(adjective, extraordinary, strange, unbelievable)
1
beyond reason(expression, adjective, extraordinary, strange, unbelievable)
1
fishy(extraordinary, amazing, unbelievable, incredible)
1
flimsy(light, thin, strange, doubtful, rare)
1
hundred-to-one(unreasonable, useless, doubtful, absurd, hopeless)
1
imcomprehensible(adjective, extraordinary, strange, unbelievable)
1
impracticable(adjective, unreasonable, useless, doubtful, absurd)
1
incogitable(adjective, extraordinary, strange, amazing)
1
insupposable(adjective, extraordinary, strange, unbelievable)
1
not likely(expression, doubtful, dubious, unlikely)
1
outside chance(expression, doubtful, dubious, unlikely)
1
phony(adjective, extraordinary, strange, amazing)
1
reachy(adjective, extraordinary, strange, unbelievable)
1
unheard of(verb, expression, phrasal verb, light, thin)
1
unsubstantial(adjective, extraordinary, strange, amazing, doubtful)
1
weak(adjective, extraordinary, strange, amazing, doubtful)
0
iffy(doubtful, unlikely)
0
not expected(expression, doubtful, unlikely)
0
rings phony(expression, unbelievable, improbable)
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APASmart Define. (2015). unimaginable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unimaginable/thesaurus/synonyms
ChicagoSmart Define. 2015. "unimaginable thesaurus" https://smartdefine.org/unimaginable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unimaginable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unimaginable/thesaurus/synonyms>.
MLASmart Define. "unimaginable thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/unimaginable/thesaurus/synonyms>