Synonyms and related words :
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