noxious

adjective
UK: /ˈnɒk.ʃəs/
US: /ˈnɑːk.ʃəs/

  1. Harmful, poisonous, or very unpleasant.

    1. The noxious fumes made me cough.
    2. Noxious industrial waste can contaminate water supplies and endanger public health.

Synonyms

harmful toxic poisonous deleterious offensive unpleasant

Frequently Asked Questions

The phonetic transcription of "noxious" is /ˈnɒk.ʃəs/ in British English and /ˈnɑːk.ʃəs/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "noxious": harmful, toxic, poisonous, deleterious, offensive, unpleasant.

Example usage of "noxious": "The noxious fumes made me cough.". More examples on the page.