Rationalness and Zaniness

Opposite meaning words

Rationalness noun - The quality of being consistent with or based on logic.

Show all Definitions

Zaniness is an antonym for rationalness.

Zaniness noun - Lack of good sense or judgment.

Usage example: what zaniness possessed you to take a mental health day when you knew that the head honcho would be visiting?

Show all Definitions

Rationalness is an antonym for zaniness.

Cite this Source

Zaniness and Rationalness. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/rationalness/zaniness

Rationalness & Zaniness. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/rationalness/zaniness>.

Zaniness or Rationalness. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/rationalness/zaniness.

Google Ngram Viewer shows how "rationalness" and "zaniness" have occurred on timeline