deficient

I adjective attenuated, barren, below par, blemished, defective, depleted, devoid, disappointing, discontenting, empty, falling short, faulty, few, flawed, hollow, impaired, imperfect, impoverished, in arrears, inadequate, incompetent, incomplete, inferior, inops, insubstantial, insufficient, jejune, lacking, less than necessary, mancus, marred, meager, missing, not enough, not satisfying, not up to normal, not up to par, paltry, partial, poor, scant, scanty, scarce, short, shy, sketchy, skimpy, slight, small, sparing, sparse, starved, substandard, thin, too little, unample, uncompleted, undeveloped, unequal to, unfinished, unfulfilled, unfurnished, unnourishing, unprovided, unsatisfactory, unsound, unsufficing, unsupplied, void of, wanting, weak associated concepts: deficiency judgment, mentally deficient, totally deficient II index defective, delinquent (overdue), devoid, fallible, faulty, imperfect, inadequate, incompetent, inferior (lower in quality), insufficient, minimal, nonsubstantial (not sturdy), nonsubstantial (not sufficient), paltry, partial (relating to a part), perfunctory, poor (inferior in quality), scarce, unqualified (not competent), unsatisfactory, unsound (not strong)