Harmless
Harmless adjective - Not causing or being capable of causing injury or hurt.
Usage example: a perfectly harmless little spider
Nonpolluting and harmless are semantically related. In some cases you can use "Nonpolluting" instead an adjective "Harmless".
Nonpolluting
Harmless and nonpolluting are semantically related. Sometimes you can use "Harmless" instead an adjective "Nonpolluting".
Mutual synonyms
Cite this Source
Nonpolluting and Harmless. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/harmless/nonpolluting
Harmless & Nonpolluting. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/harmless/nonpolluting>.
Nonpolluting or Harmless. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/harmless/nonpolluting.
Google Ngram Viewer shows how "harmless" and "nonpolluting" have occurred on timeline