misfire
1. [ verb ] (arms) fail to fire or detonate
Examples:

"The guns misfired"

Related terms: fail
2. [ noun ] a failure to hit (or meet or find etc)
Synonyms: miss missfire
Related terms: failure miss
3. [ noun ] an explosion that fails to occur
Synonyms: dud
Related terms: breakdown
Similar spelling:   missfire
  misfortune