1. (n.) The act of falling, or coming short

2. (n.) The failure of a crop, or the like.

3. (n.) Neglect of, or failure in, performance of duty.

absence adulteration asymmetry beggary blemish bug catch contrariety crack defect defectibility defection defectiveness deficiency deficit demerit deprivation destitution difference disequilibrium disparity disproportion drawback drought erroneousness failing failure fallibility famine fault faultiness faute flaw foible frailty heterogeneity hole imbalance immaturity impairment imperfection impoverishment impurity inaccuracy inadequacy inadequateness incompleteness inequality inequity inexactitude inexactness infirmity injustice insufficiency irregularity kink lack liability little problem mediocrity need nonuniformity odds omission overbalance patchiness problem rift shortage shortfall sin sketchiness snag something missing starvation taint unbalance undevelopment unevenness unfair discrimination unperfectedness unsoundness vulnerable place want wantage weak link weak point weakness