Helpful and Noxious

Helpful

Helpful adjective - Providing service or assistance.

Noxious is an antonym for helpful.

Nearby Words: help, helped, helpless, helping, helpfulness

Noxious

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

Helpful is an antonym for noxious in deadly topic.

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