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.
Lacking some of the usual forms of declension or conjugation; as, a defective noun or verb.
Anything that is defective or lacking in some respect.
One who is lacking physically or mentally.
(de·fec·tive) ADJECTIVE/NOUN: In the DHM, defective refers to a term used in the past to describe a person who was physically or mentally deficient. It was commonly used in the vernacular to describe a wide range of people between 1870 and 1930 and was related to the American eugenics movement. Now considered offensive.
lacking one or more of the usual forms of grammatical inflection. A defective word is nearly always a verb. However, even though the word is defective, you can't get your money back.
having defects, imperfect, faulty