[ nok-shuhs ]


  1. harmful, poisonous, or very unpleasant.

Examples of noxious in a sentence:

  • Besides being annoying, the mosquito is a noxious insect that can carry and transmit a number of potentially fatal diseases.
  • When I made the mistake of asking my wife what that noxious smell was, it turned out to be dinner, which I ate with my happy face.