151 entries under weak topic. ×

10
light(adjective, soft, slight, thin)
10
unsound(adjective, strong, light, slight)
9
paltry(adjective, slight, thin, delicate)
9
puny(adjective, strong, light, slight)
8
infirm(adjective, strong, light, slight)
8
rickety(adjective, slight, weakness, thin)
7
false(adjective, light, slight, fake)
7
metaphysical(adjective, body, light, slight)
7
shaky(adjective, slight, thin, delicate)
7
small(adjective, light, slight, easy)
7
superficial(adjective, slight, flat, poor)
6
chimerical(adjective, light, negative, imaginary)
6
gauzy(adjective, light, thin, feeble)
6
inadequate(adjective, dull, light, soft)
6
slender(adjective, mean, light, slight)
5
diaphanous(adjective, light, thin, feeble)
5
insecure(adjective, delicate, false, unstable)
5
meager(adjective, mean, light, slight)
5
petty(adjective, light, slight, easy)
5
unstable(adjective, delicate, false, short)
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APASmart Define. (2016). insubstantial thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/insubstantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "insubstantial thesaurus" https://smartdefine.org/insubstantial/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, insubstantial thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/insubstantial/thesaurus/synonyms>.
MLASmart Define. "insubstantial thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/insubstantial/thesaurus/synonyms>