Invalid and Spurious

Invalid

Invalid adjective - Not being in agreement with what is true.
Usage example: that's an invalid assumption on your part

Spurious is a synonym for invalid in correct topic. In some cases you can use "Spurious" instead an adjective "Invalid", when it comes to topics like false.

Spurious

Spurious adjective - Being such in appearance only and made or manufactured with the intention of committing fraud.

Invalid is a synonym for spurious in correct topic. You can use "Invalid" instead an adjective "Spurious", if it concerns topics such as bogus.

Nearby Word: spuriously
Cite this Source
Spurious and Invalid. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/invalid/spurious
Invalid & Spurious. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/invalid/spurious>.
Spurious or Invalid. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/invalid/spurious.
Google Ngram Viewer shows how "invalid" and "spurious" have occurred on timeline