1. (n.) Deficiency; inadequacy; as, the insufficiency of provisions\, of an excuse, etc.

2. (n.) Want of power or skill; inability; incapacity; incompetency; as, the insufficiency of a man for an office.

arrear arrearage arrears asymmetry baseness contrariety daintiness decline defalcation default defectiveness deficiency deficit delicacy delinquency difference diminutiveness disability disablement disequilibrium disparity disproportion disqualification dissatisfactoriness exiguity exiguousness failure falling short fewness heterogeneity imbalance imbecility imperfection inability inadequacy inadmissibility incapability incapacitation incapacity incompetence incompetency inconsequentiality inconsiderableness indefensibility inefficiency ineptitude inequality inequity infancy inferiority injustice insignificance intolerability irregularity legal incapacity littleness maladroitness meagerness meanness mediocrity minority minuteness moderateness nonuniformity objectionability odds overbalance pettiness picayunishness puniness scantiness shabbiness short measure shortage shortcoming shortfall slightness slump smallness subnormality tininess triviality unacceptability unbalance underage undesirability unevenness unfair discrimination unfitness unimportance unsatisfactoriness unskillfulness unsuitability untenability vulgarity wardship