Deleterious and Noxious

Deleterious

Deleterious adjective - Causing or capable of causing harm.
Usage example: nicotine has long been recognized as a deleterious substance

Noxious is a synonym for deleterious in baneful topic. In some cases you can use "Noxious" instead an adjective "Deleterious", when it comes to topics like hurtful, injurious, pernicious, unfavorable. popular alternative

Noxious

Noxious adjective - Causing or capable of causing harm.
Usage example: noxious smog that for years has been encrusting the historic cathedral with soot

Deleterious is a synonym for noxious in baneful topic. You can use "Deleterious" instead an adjective "Noxious", if it concerns topics such as hurtful, injurious, pernicious, deadly. popular alternative

Nearby Words: noxiousness, noxiously
Cite this Source
Noxious and Deleterious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deleterious/noxious
Deleterious & Noxious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deleterious/noxious>.
Noxious or Deleterious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deleterious/noxious.
Google Ngram Viewer shows how "deleterious" and "noxious" have occurred on timeline