dud meaning and definition

DUD noun

Definition of dud (noun)

1. someone who is unsuccessful
   • synonyms: flop, washout
2. an explosion that fails to occur
   • synonyms: misfire
3. 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"
   • synonyms: bomb, turkey

DUD adjective

Definition of dud (adjective)

1. failing to detonate; especially not charged with an active explosive
   • "he stepped on a dud mine"