Dangerous and Noxious

Dangerous

Dangerous adjective - Involving potential loss or injury.
Usage example: the soldiers were specially selected to go on a dangerous mission behind enemy lines

Noxious is a synonym for dangerous in health topic. In some cases you can use "Noxious" instead an adjective "Dangerous", when it comes to topics like pernicious, adverse, deleterious, causing disease.

Nearby Words: danger, dangerously

Noxious

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

Dangerous is a synonym for noxious in harmful topic. You can use "Dangerous" instead an adjective "Noxious", if it concerns topics such as health, pernicious, adverse, deadly.

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