defective

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++de·fec·tive /dɪˈfektɪv/ adjective BROKENnot made properly, or not working properly 有问题的，有毛病的，有缺陷的 SYN faulty The disease is caused by a defective gene. 这种疾病是由缺陷基因引起的。 defective products 残次品

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.