Invalid and Ineffectual

Invalid

Invalid adjective - Having no legal or binding force.
Usage example: the treaty is invalid once one side violates it

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

Ineffectual

Ineffectual adjective - Not producing the desired result.

Invalid and ineffectual are semantically related in null and void topic. Sometimes you can use "Invalid" instead an adjective "Ineffectual".

Nearby Words: ineffective, ineffectively
Cite this Source
Ineffectual and Invalid. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/invalid/ineffectual
Invalid & Ineffectual. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/invalid/ineffectual>.
Ineffectual or Invalid. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/invalid/ineffectual.
Google Ngram Viewer shows how "invalid" and "ineffectual" have occurred on timeline