407 entries under noun topic. ×

5
incompetence(defect, imperfection, limitation, inadequacy)
5
inferiority(weakness, want, need, loss)
5
loss(decline, ruin, defeat, damage)
5
neglect(decline, failure, mess, lack)
5
omission(failure, lack, avoidance, evasion)
5
skimpiness(failure, need, lack, failing)
5
underage(weakness, condition, loss, excess)
4
drought(lack, shortage, scarcity, nonexistence)
4
bankruptcy(decline, ruin, defeat, pass)
4
bug(weakness, crack, informal, fault)
4
defalcation(weakness, failure, lack, loss)
4
defection(failure, failing, rejection, withdrawal)
4
deprivation(trouble, defeat, difficulty, bar)
4
dereliction(decline, neglect, failure, mess)
4
destitution(defeat, pass, difficulty, distress)
4
hiatus
4
impairment(hurt, defeat, fall, damage)
4
impoverishment(pass, difficulty, distress, failure)
3
sparseness(lack, scarcity, insufficiency, scantiness)
3
arrears(failure, loss, obligation, inadequacy)
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APASmart Define. (2015). deficiency thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/deficiency/thesaurus/synonyms
ChicagoSmart Define. 2015. "deficiency thesaurus" https://smartdefine.org/deficiency/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, deficiency thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/deficiency/thesaurus/synonyms>.
MLASmart Define. "deficiency thesaurus" 23 December 2015. Web. 29 September 2026. <https://smartdefine.org/deficiency/thesaurus/synonyms>