/ dɪˈfektɪv; NAmE / adjective
having a fault or faults; not perfect or complete
SYN faulty :
defective goods
Her hearing was found to be slightly defective.
► de·fect·ive·ly adverb
► de·fect·ive·ness noun [ U ]
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WORD ORIGIN
Middle English : from Old French defectif , -ive or late Latin defectivus , from deficere fail, from de- (expressing reversal) + facere do.