2
inadmissible(adjective, unacceptable)
2
ineligible(adjective, weak, inadequate, useless, unfit)
2
inexpert(adjective, weak, inadequate, useless, unfit)
2
infertile(adjective, poor, small, insignificant, unimportant)
2
inoperative(adjective, inutility)
2
insubstantial(adjective, weak, slight, flat, poor)
2
intolerable(adjective, unacceptable)
2
inutile(adjective, useless, unfit, inutility)
2
lean
2
mediocre(adjective, bad, weak, poor, miserable)
2
middling
2
minor(adjective, light, weak, soft, slight)
2
occasional(adjective, slight, short, inadequate, limited)
2
odd
2
parsimonious(weak, poor, scarce)
2
pathetic
2
reduced
2
sectional(adjective, incomplete)
2
seldom(adjective, slight, short, inadequate, limited)
2
skimp(slight, small, miserable, inadequate, limited)
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APASmart Define. (2016). insufficient thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/insufficient/thesaurus/synonyms
ChicagoSmart Define. 2016. "insufficient thesaurus" https://smartdefine.org/insufficient/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, insufficient thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/insufficient/thesaurus/synonyms>.
MLASmart Define. "insufficient thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/insufficient/thesaurus/synonyms>