Certain
Certain adjective - Known but not named.
Nonhazardous and certain are semantically related. In some cases you can use "Nonhazardous" instead an adjective "Certain".
Nonhazardous
Certain and nonhazardous are semantically related. Sometimes you can use "Certain" instead an adjective "Nonhazardous".
Mutual synonyms
Cite this Source
Nonhazardous and Certain. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/certain/nonhazardous
Certain & Nonhazardous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/certain/nonhazardous>.
Nonhazardous or Certain. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/certain/nonhazardous.
Google Ngram Viewer shows how "certain" and "nonhazardous" have occurred on timeline