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Related to deficient: Deficient number
deficientadjective attenuated, barren, below par, blemished, defective, depleted, devoid, disappointing, 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 norral, not up to par, paltry, partial, poor, scant, scanty, scarce, short, shy, sketchy, skimpy, slight, small, sparing, sparse, starved, substandard, thin, too little, unample, undeveloped, unequal to, unfinished, unfulfilled, unfurnished, unnourishing, unprovided, unsatisfactory, unsufficing, unsupplied, void of, wanting, weak
Associated concepts: deficiency judgment, mentally deficient, totally deficient
See also: defective, delinquent, devoid, fallible, faulty, imperfect, inadequate, incompetent, inferior, insufficient, minimal, nonsubstantial, overdue, paltry, partial, perfunctory, poor, scarce, unqualified, unsatisfactory, unsound