6
inadequacy(noun, advantage, defect, shortage, inability)
5
insufficiency(noun, lack, enough)
4
dearth(noun, abundance, enough)
4
deficiency(noun, excess, imperfection, enough, inadequacy)
4
lack(noun, plenty, enough)
4
scantiness(noun, excess, enough)
4
shame
4
shortage(noun, excess, deficiency)
3
absence(noun, excess)
3
deficit(noun, advantage, enough)
3
inadequateness
3
need
3
paucity
3
scarcity(noun, enough)
2
inability(noun, success)
2
poverty(ease, surplus)
2
scarceness
2
shortfall(noun, enough)
2
want
1
abyss
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APASmart Define. (2016). sufficiency thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sufficiency/thesaurus/antonyms
ChicagoSmart Define. 2016. "sufficiency thesaurus" https://smartdefine.org/sufficiency/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, sufficiency thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sufficiency/thesaurus/antonyms>.
MLASmart Define. "sufficiency thesaurus" 29 February 2016. Web. 23 September 2026. <https://smartdefine.org/sufficiency/thesaurus/antonyms>