Insoluble and Refractory

Insoluble

Insoluble adjective - Incapable of being solved or accomplished.

Refractory and insoluble are semantically related. In some cases you can use "Refractory" instead an adjective "Insoluble".

Nearby Word: insolubility

Refractory

Refractory adjective - Given to resisting authority or another's control.

Insoluble and refractory are semantically related. Sometimes you can use "Insoluble" instead an adjective "Refractory".

Cite this Source
Refractory and Insoluble. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/insoluble/refractory
Insoluble & Refractory. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/insoluble/refractory>.
Refractory or Insoluble. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/insoluble/refractory.
Google Ngram Viewer shows how "insoluble" and "refractory" have occurred on timeline