Invalid and Unexplainable

Invalid

Invalid adjective - Not using or following good reasoning.
Usage example: an argument which has one untrue premise is invalid

Unexplainable and invalid are semantically related. In some cases you can use "Unexplainable" instead an adjective "Invalid".

Unexplainable

Unexplainable adjective - Impossible to explain.

Invalid and unexplainable are semantically related. Sometimes you can use "Invalid" instead an adjective "Unexplainable".
Cite this Source
Unexplainable and Invalid. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/invalid/unexplainable
Invalid & Unexplainable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/invalid/unexplainable>.
Unexplainable or Invalid. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/invalid/unexplainable.
Google Ngram Viewer shows how "invalid" and "unexplainable" have occurred on timeline