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