Invalid and Unauthorized

Invalid

Invalid adjective - Chronically or repeatedly suffering from poor health.

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

Unauthorized

Unauthorized adjective - Not endowed with authority.

Invalid and unauthorized are semantically related. Sometimes you can use "Invalid" instead an adjective "Unauthorized".

Nearby Word: unauthorised
Cite this Source
Unauthorized and Invalid. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/invalid/unauthorized
Invalid & Unauthorized. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/invalid/unauthorized>.
Unauthorized or Invalid. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/invalid/unauthorized.
Google Ngram Viewer shows how "invalid" and "unauthorized" have occurred on timeline