defective Synonyms

bad faulty unsound wanting weak worse wrong rotten maladaptive maladjusted uncollectible kaput knackered unfinished unbacked scabbed scarred second-class second-rate shoddy short-handed sketchy subnormal toothless unacceptable unaccomplished skimpy busted crappy third rate trumped-up uncompleted unconsummated unperformed unpersuasive unretentive unsaleable unserviceable not working unsatisfying out of whack out of order malfunctioning nonadaptive dysfunctional unsatisfactory undeveloped damaged below par substandard