dud
adjective
1. failing to detonate; especially not charged with an active explosive
- he stepped on a dud mine
Similar word(s): unloaded
noun
1. someone who is unsuccessful
Similar word(s): flop, washout
Definition categories: person, failure, loser, nonstarter
2. an explosion that fails to occur
Similar word(s): misfire
Definition categories: event, breakdown
3. an event that fails badly or is totally ineffectual
- the meeting was a dud as far as new business was concerned