failing to detonate; especially not charged with an
active explosive; "he stepped on a dud mine"
n
someone who is unsuccessful Synonym(s):flop, dud, washout
an explosion that fails to occur Synonym(s):misfire, dud
an event that fails badly or is totally ineffectual; "the first experiment was a real turkey"; "the meeting was a dud as far as new business was concerned" Synonym(s):turkey, bomb, dud