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"
failing to detonate; especially not charged with an active explosive; "he stepped on a dud mine
A device that will not function, no matter what the stimulus level is This term is most often used in connection with explosive components Sometimes also called a reject component
Dud means not working properly or not successful. He replaced a dud valve. Dud is also a noun. The mine was a dud
{i} person or thing which does not succeed, failure, loser; bore; (Slang) clothing (usually duds)