1. (a.) Wanting in something; incomplete; lacking a part; deficient; imperfect; faulty; -- applied either to natural or moral qualities; as, a defective limb; defective timber; a defective copy or account; a defective character; defective rules.

2. (a.) Lacking some of the usual forms of declension or conjugation; as, a defective noun or verb.

aberrant abroad adrift adulterated all abroad all off all wrong ament amiss amputee arrested askew astray at fault awry backward beside the mark blemished born fool broken callow checked cicatrized clot congenital idiot corrupt corrupted cracked crazed cretin cripple damaged debased deceptive defaced deficient deformed deformity delusive deranged deviant deviational deviative disfigured disordered distorted disturbed embryonic errant erring erroneous exceptional failing fallacious fallible FALSE faultful faulty flawed found wanting golem half-assed half-wit handicapped person heretical heterodox hypoplastic idiot illogical illusory imbecile immature impaired imperfect imprecise impure in arrear in arrears in default in short supply inaccurate inadequate incapable incompetent incomplete inexact infant injured insufficient juggins keloidal kinked lacking makeshift marred mediocre mentally deficient missing mixed mongoloid idiot moron natural natural idiot natural-born fool needing not enough not perfect not right not true off off the track on the blink on the fritz out out of order paralytic paraplegic part partial patchy peccant perverse perverted pimpled pimply quadriplegic retarded scabbed scabby scant scanty scarified scarred scrappy self-contradictory short shy sick simp simple simpleton sketchy split straying subnormal the crippled the handicapped too little twisted underdeveloped undeveloped unequal to uneven unfactual unfinished unhealthy unorthodox unperfected unproved unqualified unsatisfactory unsatisfying unsettled unsound unsufficing unthorough untrue vitiated wanting warped wide wrong