69 entries under implausible topic. ×

1
unheard of(light, thin, strange, doubtful, rare)
1
unimaginable(light, thin, strange, doubtful, rare)
1
untenable(absurd, unwarranted, untrue, preposterous)
1
unthinkable(light, thin, extraordinary, strange, rare)
0
absurd(unbelievable, preposterous, improbable)
0
impracticable(doubtful, unlikely)
0
insupposable(absurd, unbelievable, preposterous, improbable)
0
out of the question(expression, idiom, absurd, preposterous)
0
rings phony(expression, absurd, unbelievable, preposterous)
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APASmart Define. (2016). flimsy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/flimsy/thesaurus/synonyms
ChicagoSmart Define. 2016. "flimsy thesaurus" https://smartdefine.org/flimsy/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, flimsy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/flimsy/thesaurus/synonyms>.
MLASmart Define. "flimsy thesaurus" 26 January 2016. Web. 21 September 2026. <https://smartdefine.org/flimsy/thesaurus/synonyms>