Synonyms and related words :
absence, adulteration, arrearage, arrestment, baseness, beggary, blemish, break, bug, callowness, catch, crack, dearth, defalcation, default, defect, defectibility, defection, defectiveness, deficit, demerit, deprivation, dereliction, destitution, discontinuity, drawback, drought, erroneousness, failing, failure, fallibility, famine, fault, faultiness, faute, fewness, flaw, foible, frailty, gap, hiatus, hole, immaturity, impairment, imperfection, impoverishment, impurity, inaccuracy, inadequacy, inadequateness, incompetence, incompleteness, incompletion, inexactitude, inexactness, infirmity, insufficiency, interval, kink, lack, lacuna, little problem, littleness, maladroitness, meanness, mediocrity, miscarriage, missing link, need, neglect, omission, outage, patchiness, pettiness, privation, problem, rift, scantiness, scrappiness, shabbiness, short measure, short weight, shortage, shortcoming, shortfall, sin, sketchiness, smallness, snag, something missing, starvation, subnormality, taint, triviality, ullage, underage, underdevelopment, undevelopment, unevenness, unperfectedness, unskillfulness, unsoundness, vulgarity, vulnerable place, want, wantage, weak link, weak point, weakness