77 entries under inadequate topic. ×

1
haggard(adjective, dull, light, soft, poor)
1
inappreciable(weak, slight, poor, small, miserable)
1
livid(adjective, dull, light, soft, poor)
1
lurid(adjective, dull, light, soft, poor)
1
pallid(adjective, dull, light, soft, poor)
1
pasty(adjective, dull, light, soft, poor)
1
sallow(adjective, dull, light, soft, poor)
1
short(weak, slight, poor, limited)
1
sick(adjective, dull, light, soft, poor)
1
sickly(adjective, dull, light, weak, soft)
1
skimpy(adjective, mean, weak, slight, flat)
1
spare(adjective, mean, weak, slight, fine)
1
sparse(adjective, mean, weak, slight, flat)
1
unproductive(weak, slight, poor, small)
1
wan(adjective, dull, light, soft, poor)
1
washed-out(adjective, dull, light, soft, poor)
1
waxen(adjective, dull, light, soft, poor)
1
waxlike(adjective, dull, light, soft, poor)
1
whitish(adjective, dull, light, soft, poor)
0
bitty(insufficient, scanty)
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APASmart Define. (2016). insubstantial thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/insubstantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "insubstantial thesaurus" https://smartdefine.org/insubstantial/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, insubstantial thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/insubstantial/thesaurus/synonyms>.
MLASmart Define. "insubstantial thesaurus" 30 March 2016. Web. 30 September 2026. <https://smartdefine.org/insubstantial/thesaurus/synonyms>