absence, arrear, arrearage, arrears, bad habit, baseness, beggary, besetting sin, blemish, bug, catch, crack, damage, decline, defalcation, default, defect, defection, defectiveness, deficiency, deficit, delinquency, demerit, deprivation, destitution, drawback, drought, error, failing, failure, fallibility, falling short, famine, fault, faute, fewness, flaw, foible, frailty, hole, impoverishment, inadequacy, incompetence, incompleteness, inferiority, infirmity, insufficiency, kink, lack, little problem, littleness, maladroitness, meanness, mediocrity, moral flaw, need, omission, peccadillo, pettiness, problem, rift, shabbiness, short measure, shortage, shortcoming, shortfall, sin, slump, smallness, snag, something missing, starvation, subnormality, taint, triviality, underage, unskillfulness, vice, vulgarity, vulnerable place, want, wantage, weak link, weak point, weak side, weakness