Noxious
Noxious adjective - Causing or capable of causing harm.
Usage example: noxious smog that for years has been encrusting the historic cathedral with soot
Risky and noxious are semantically related. In some cases you can use "Risky" instead an adjective "Noxious".
Nearby Words: noxiousness, noxiously
Mutual synonyms
Cite this Source
Risky and Noxious. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/noxious/risky
Noxious & Risky. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/noxious/risky>.
Risky or Noxious. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/noxious/risky.
Google Ngram Viewer shows how "noxious" and "risky" have occurred on timeline