"Unnecessary" can refer to something that is unnecessary but harmless, or unnecessary and costly, but not inherently harmful.

I am looking for a word to describe a situation where there is a government or organization that has hired a person who does not actually add anything to the service intended to being provided (unnecessary) but simultaneously undermines the organization in the service of his own objectives (dangerous/destructive).

For example, a bureaucrat that doesn't do anything of value (could be fired without any needs of the organization being endangered), but uses his bureaucratic power to achieve his own political/financial ends while risking the organization he works for.

I'd really like a single adjective that describes this idea that someone/something is not only unnecessary but also dangerous.

  • something harmful is always unnecessary.
    – Ubi.B
    Aug 19, 2018 at 13:44
  • 1
    How would you use the adjective in a sentence?
    – Lawrence
    Aug 19, 2018 at 14:03
  • Deleterious is as close as I can come.
    – Phil Sweet
    Aug 19, 2018 at 14:28
  • 1
    @ubi hatt, no that's not true. Something can be a necessary evil
    – user56834
    Aug 20, 2018 at 4:12
  • 1
    I think there ain't no such critter… "worse than useless" might work but that's not a single adjective. Aug 21, 2018 at 23:19


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