Synonyms of defective in English:

defective


See definition of defective

adjective

1‘a defective seat belt’

SYNONYMS

faulty, flawed, imperfect, shoddy, inoperative, not working, not functioning, non-functioning, malfunctioning, out of order, unsound

weak, deficient, incomplete

in disrepair, broken, cracked, torn, scratched, deformed, warped, buckled

informal gone wrong, on the blink

British informal knackered, duff

ANTONYMS

working, perfect

2‘these methods are defective in strength and durability’

SYNONYMS

lacking, wanting, deficient, inadequate, insufficient, short, low, scant