Invalidity and Surety
Opposite meaning words
Invalidity
Invalidity noun - Illogicality as a consequence of having a conclusion that does not follow from the premisses.
Surety
Surety noun - A formal agreement to fulfill an obligation.
Invalidity is an antonym for surety.
Nearby Word: suretyship
Cite this Source
Surety and Invalidity. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/invalidity/surety
Invalidity & Surety. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/invalidity/surety>.
Surety or Invalidity. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/invalidity/surety.
Google Ngram Viewer shows how "invalidity" and "surety" have occurred on timeline