Definitions of defective

1. Anything that is defective or lacking in some respect.

2. One who is lacking physically or mentally.

3. Defectiveness.

4. Defectively.

5. markedly subnormal in structure or function or intelligence or behavior; " defective speech"

6. 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.

7. Having a blemish or flaw of any kind; incomplete; faulty; wanting some of the usual grammatical forms.

8. Having defect; incomplete; insufficient.

9. Incomplete; imperfect; faulty.

10. Wanting in something, physical or moral; imperfect; incomplete.

11. Imperfect; faulty; wanting in something.