DEFECTIVE

defective. Defective, a. deficient, imperfect, blamable

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De‐fect″ive (?), a. [[L. defectivus: cf. F. défectif. See Defect.]] 1. 1. 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. 2. (Gram.) Lacking some of the usual forms of declension or conjugation; as, a defective noun or verb. — De‐fect″ive‐ly, adv. — De‐fect″ive‐ness, n.