Hazardous
Noxious
Noxious adjective - Causing or capable of causing harm.
Usage example: noxious smog that for years has been encrusting the historic cathedral with soot
Hazardous and noxious are semantically related. Sometimes you can use "Hazardous" instead an adjective "Noxious".
Nearby Words: noxiousness, noxiously
Mutual synonyms
Related pairs
Cite this Source
Noxious and Hazardous. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/hazardous/noxious
Hazardous & Noxious. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/hazardous/noxious>.
Noxious or Hazardous. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/hazardous/noxious.
Google Ngram Viewer shows how "hazardous" and "noxious" have occurred on timeline