Rational and Without foundation

Opposite meaning terms

Rational adjective - Having the ability to reason.

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Without foundation is an antonym for rational.

Definitions of Rational not found.

Rational is an antonym for without foundation in not making sense topic.

Cite this Source

Without foundation and Rational. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/rational/without_foundation

Rational & Without foundation. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/rational/without_foundation>.

Without foundation or Rational. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/rational/without_foundation.

Google Ngram Viewer shows how "rational" and "without foundation" have occurred on timeline