Noxious
Noxious adjective - Causing or capable of causing harm.
Usage example: noxious smog that for years has been encrusting the historic cathedral with soot
Venomous is a synonym for noxious in poisonous topic. In some cases you can use "Venomous" instead an adjective "Noxious", when it comes to topics like deadly. popular alternative
Nearby Words: noxiousness, noxiously
Venomous
Venomous adjective - Containing or contaminated with a substance capable of injuring or killing a living thing.
Usage example: a venomous arrow
Noxious is a synonym for venomous in poisonous topic. You can use "Noxious" instead an adjective "Venomous". popular alternative
Nearby Words: venom, venomously
Mutual synonyms
Related pairs
Both words in one sentence
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Venomous or noxious animals' warning coloration could be considered a form of this.
Source: Terror Hero
Cite this Source
Venomous and Noxious. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/noxious/venomous
Noxious & Venomous. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/noxious/venomous>.
Venomous or Noxious. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/noxious/venomous.
Google Ngram Viewer shows how "noxious" and "venomous" have occurred on timeline