Invalid
Invalid adjective - Having no legal or binding force.
Usage example: the treaty is invalid once one side violates it
Nugatory is a synonym for invalid in worthless topic. In some cases you can use "Nugatory" instead an adjective "Invalid", when it comes to topics like null and void.
Nugatory
Nugatory adjective - Having no legal or binding force.
Usage example: the congressional resolution has symbolic value only, as it relates to a matter governed by the states and is thus nugatory
Mutual synonyms
Related pairs
Cite this Source
Nugatory and Invalid. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/invalid/nugatory
Invalid & Nugatory. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/invalid/nugatory>.
Nugatory or Invalid. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/invalid/nugatory.
Google Ngram Viewer shows how "invalid" and "nugatory" have occurred on timeline