Synonyms and Antonyms for dud

1. dud (n.)

an event that fails badly or is totally ineffectual

Synonyms:

2. dud (adj.)

failing to detonate; especially not charged with an active explosive

Synonyms: Antonyms:

3. dud (n.)

an explosion that fails to occur

Synonyms:

4. dud (n.)

someone who is unsuccessful

Synonyms: Antonyms: