61 entries under ill topic. ×

4
unreliable(false, insane, unhealthy, frail)
3
tottering(adjective, weakness, unstable, shaky)
3
wobbly(adjective, weak, slight, thin, delicate)
2
dangerous(false, unstable, shaky, insane)
2
debilitated(adjective, weak, delicate, uncertain)
2
enfeebled(adjective, weak, delicate, sick)
2
lame(adjective, weak, flat, poor, thin)
2
specious(bad, false, insane, irrational)
1
ailing(adjective, weak, delicate, false, unstable)
1
anemic(adjective, dull, light, weak, soft)
1
anile(adjective, weak, delicate, sick)
1
failing(adjective, weak, delicate, sick)
1
faulty(bad, false, insane, unhealthy)
1
halting(adjective, weak, delicate, sick)
1
inaccurate(bad, false, insane, unhealthy)
1
incorrect(bad, false, insane, unhealthy)
1
invalid(unhealthy, irrational, frail, unreasoned)
1
irresolute(adjective, weak, delicate, uncertain)
1
laid low(expression, adjective, weak, delicate)
1
mad(false, unstable, shaky, insane)
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APASmart Define. (2016). unsubstantial thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unsubstantial/thesaurus/synonyms
ChicagoSmart Define. 2016. "unsubstantial thesaurus" https://smartdefine.org/unsubstantial/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, unsubstantial thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unsubstantial/thesaurus/synonyms>.
MLASmart Define. "unsubstantial thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/unsubstantial/thesaurus/synonyms>