dud

/dสŒd/
noun
  1. 1

    A device or machine that is useless because it does not work properly or has failed to work, such as a bomb, or explosive projectile.

  2. 2

    A failure of any kind.

  3. 3

    Clothes, now always used in plural form duds.

Synonyms

Source: https://en.wiktionary.org/wiki/dud