103 entries under flimsy topic. ×

14
unsafe(adjective, characteristic, quality, finance, dangerous)
13
incorrect(adjective, bad, correct, wrong, fake)
13
insubstantial(adjective, strong, light, weak, slight)
13
unsteady(adjective, weak, uncertain, unstable, ill)
13
unsubstantial(adjective, bad, strong, light, weak)
12
ailing(adjective, weak, delicate, dark, gloomy)
12
delicate(adjective, strong, weak, slight, thin)
12
inaccurate(adjective, bad, correct, wrong, fake)
12
specious(adjective, bad, correct, wrong, fake)
12
unwell(adjective, ill, well, shaky, unhealthy)
11
decrepit(adjective, strong, light, weak, slight)
10
insecure(adjective, weak, delicate, uncertain, sensitive)
9
crazed(adjective, crazy, mad, well, insane)
9
demented(adjective, foolish, crazy, unstable, well)
9
rickety(adjective, weak, slight, thin, delicate)
9
unbalanced(adjective, simple, foolish, crazy, well)
9
wobbly(adjective, weak, slight, thin, delicate)
8
insane(adjective, wrong, silly, foolish, stupid)
7
dangerous(adjective, severe, delicate, awful, terrible)
6
deranged(adjective, foolish, crazy, mad, unstable)
11 years ago|31k views|share |citing 
APASmart Define. (2015). unsound thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsound/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsound thesaurus" https://smartdefine.org/unsound/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unsound thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsound/thesaurus/synonyms>.
MLASmart Define. "unsound thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unsound/thesaurus/synonyms>