Synonyms|909Antonyms|156|Broader|7Narrower|0Related|1.8k

75 entries under expression topic. ×

1
mad as a hatter(idiom, wrong, wild, silly)
1
mock heroic(idiom, ridiculousness)
1
not deserving belief
1
not suitable(adjective, wrong, false, awkward)
1
nutty as fruitcake(idiom, wrong, wild, silly)
1
of unsound mind(idiom, foolish, stupid, crazy)
1
off the wall(adjective, idiom, silly, foolish)
1
on cloud nine(adjective, idiom, happy, perfect)
1
open to suspicion
1
out of all reason(idiom, silly, foolish, fantastic)
1
out of proportion(false, extravagant, inflated, embellished)
1
out of the question(adjective, idiom, unreasonable, useless)
1
pie in the sky(adjective, idiom, happy, perfect)
1
pipe dream(adjective, happy, perfect, fantastic)
1
tang dynasty(noun, idiom)
1
unworthy of belief
1
way out(adjective, silly, crazy, unreasonable)
0
absolutely not
0
acting crazy(adjective, silly, foolish, crazy)
0
all wet(foolish, stupid, senseless, irrational)
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ChicagoSmart Define. 2015. "preposterous thesaurus" https://smartdefine.org/preposterous/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, preposterous thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/preposterous/thesaurus/synonyms>.
MLASmart Define. "preposterous thesaurus" 2 September 2015. Web. 22 September 2026. <https://smartdefine.org/preposterous/thesaurus/synonyms>