333 entries under adjective topic. ×

14
sterile(weak, poor, base, inferior)
13
powerless(strong, weak, ability, thin)
12
unable(weak, skill, inadequate, limited)
12
barren(weak, poor, base, inferior)
12
inept(weak, poor, stupid, idle)
12
spineless(weak, soft, poor, uncertain)
11
cowardly(weak, soft, uncertain, unstable)
11
incapable(strong, weak, ability, inadequate)
11
inoperative(weak, stupid, idle, inadequate)
11
profitless(poor, base, stupid, inferior)
10
empty(poor, base, inferior, insignificant)
10
feckless(stupid, idle, inadequate, feeble)
9
nugatory(poor, failure, base, inferior)
9
insufficient(weak, thin, delicate, failure)
9
purposeless(weak, stupid, idle, senseless)
8
paltry(weak, poor, thin, delicate)
8
unprofitable(poor, base, silly, stupid)
7
forceless(weak, inadequate, limited, feeble)
7
insignificant(mean, poor, base, stupid)
7
inutile(poor, base, stupid, inferior)
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APASmart Define. (2016). ineffectual thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ineffectual/thesaurus/synonyms
ChicagoSmart Define. 2016. "ineffectual thesaurus" https://smartdefine.org/ineffectual/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, ineffectual thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ineffectual/thesaurus/synonyms>.
MLASmart Define. "ineffectual thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/ineffectual/thesaurus/synonyms>