Synonyms|352Antonyms|121|Broader|4Narrower|7Related|1.4k
1
ungodly
1
unheard-of(extraordinary, strange, doubtful, dubious, unbelievable)
1
unjustifiable
1
unjustified
1
unpersuasive(adjective, weak, poor, unconvincing)
1
unpromising
1
unsubstantiated
1
unworthy of belief(expression, idiom)
0
alleged
0
allegedly
0
anecdotal
0
apparently
0
assailable(poor, unconvincing)
0
at a premium(expression, adjective, idiom, expensive, steep)
0
belief(extraordinary, strange, unbelievable, unthinkable, unimaginable)
0
beyond reason(expression, extraordinary, strange, unbelievable, unthinkable)
0
big-ticket(adjective, expensive, steep, high-priced, costly)
0
capricious(adjective, strange, crazy, insane, unpredictable)
0
changeable(adjective, unpredictable, fickle, variable, undependable)
0
complicated(hard, difficult)
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ChicagoSmart Define. 2015. "implausible thesaurus" https://smartdefine.org/implausible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, implausible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/implausible/thesaurus/synonyms>.
MLASmart Define. "implausible thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/implausible/thesaurus/synonyms>