151 entries under weak topic. ×

1
too little(expression, poor, insufficient, scarce)
1
too little too late(expression, adjective, idiom, light)
1
transparent(adjective, light, slight, thin)
1
unproductive(slight, poor, small, inadequate)
1
unqualified(poor, insufficient, scarce)
1
vacillating(delicate, unstable, vulnerable, dangerous)
1
vitiated(adjective, thin, delicate, shaky)
1
vulnerable(adjective, thin, delicate, loose)
1
wavering(adjective, delicate, uncertain, feeble)
1
weakened(adjective, thin, delicate, uncertain)
1
wimpy(adjective, thin, delicate, shaky)
1
wishy-washy(light, soft, slight, trivial)
1
wobbly(adjective, slight, thin, delicate)
1
woozy(adjective, thin, delicate, shaky)
0
cut-rate(slight, thin, feeble, tacky)
0
fishy(infirm, fragile)
0
found wanting(expression, poor, insufficient, scarce)
0
fracturable(delicate, infirm, flimsy, fragile)
0
ill(delicate, unstable, shaky, insane)
0
imperfect(poor, insufficient, scarce)
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APASmart Define. (2016). insubstantial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/insubstantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "insubstantial thesaurus" https://smartdefine.org/insubstantial/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, insubstantial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/insubstantial/thesaurus/synonyms>.
MLASmart Define. "insubstantial thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/insubstantial/thesaurus/synonyms>