Antonyms of adj defective

3 senses of defective

Sense 1
defective, faulty -- (having a defect; "I returned the appliance because it was defective")

INDIRECT (VIA imperfect) -> perfect -- (being complete of its kind and without defect or blemish; "a perfect circle"; "a perfect reproduction"; "perfect happiness"; "perfect manners"; "a perfect specimen"; "a perfect day")

Sense 2
defective -- (markedly subnormal in structure or function or intelligence or behavior; "defective speech")

INDIRECT (VIA abnormal) -> normal -- (conforming with or constituting a norm or standard or level or type or social norm; not abnormal; "serve wine at normal room temperature"; "normal diplomatic relations"; "normal working hours"; "normal word order"; "normal curiosity"; "the normal course of events")

Sense 3
bad, defective -- (not working properly; "a bad telephone connection"; "a defective appliance")

INDIRECT (VIA malfunctioning) -> functioning -- (performing or able to perform its regular function; "a functioning flashlight")

Similarity of adj defective

3 senses of defective

Sense 1
defective, faulty -- (having a defect; "I returned the appliance because it was defective")
       => imperfect (vs. perfect) -- (not perfect; defective or inadequate; "had only an imperfect understanding of his responsibilities"; "imperfect mortals"; "drainage here is imperfect")

Sense 2
defective -- (markedly subnormal in structure or function or intelligence or behavior; "defective speech")
       => abnormal (vs. normal), unnatural -- (not normal; not typical or usual or regular or conforming to a norm; "abnormal powers of concentration"; "abnormal amounts of rain"; "abnormal circumstances"; "an abnormal interest in food")

Sense 3
bad, defective -- (not working properly; "a bad telephone connection"; "a defective appliance")
       => malfunctioning (vs. functioning), nonfunctional -- (not performing or able to perform its regular function; "a malfunctioning valve")