From Longman Dictionary of Contemporary Englishdefectivede‧fec‧tive /dɪˈfektɪv/ ●○○ adjective BROKENnot made properly, or not working properly SYN faulty The disease is caused by a defective gene. defective products
Examples from the Corpus
defective• The seed was defective and the resulting crop was little better than useless.• This is a rare familial disorder in which conjugated bilirubin levels are increased due to defective excretion of bilirubin in the bile.• The biological truth is the opposite; all biologists know that males are defective females.• Merchants will give refunds on any damaged or defective merchandise.• These usually indicate the presence of steel tie-rods used to hold a defective structure together.From Longman Business Dictionarydefectivede‧fec‧tive /dɪˈfektɪv/ adjective if a product is defective, it has not been made properly or it is not working properlyIt is the customer’s right to return defective goods. —defectively adverbThe computer system was defectively designed. 