Synonyms of dud in English:

dud


See definition of dud

noun

1‘their new product turned out to be a complete dud’

SYNONYMS

failure, flop, let-down, disappointment

British damp squib

washout, lemon, loser, no-hoper, non-starter, dead loss, dead duck, lead balloon, fail

North American clinker

ANTONYMS

success


adjective

1‘a dud typewriter ribbon’

SYNONYMS

defective, faulty, unsound, inoperative, broken, broken-down, not working, not in working order, not functioning, malfunctioning, failed

bust, busted, kaput, on its last legs, conked out, done for

British duff, knackered

British vulgar slang buggered

ANTONYMS

in working order

2‘he payed with a dud £50 note’

SYNONYMS

counterfeit, fraudulent, forged, fake, faked, false, bogus, spurious

bad, invalid, worthless

phoney

ANTONYMS

genuine