Established and Nonrational

Opposite meaning words

Established adjective - Brought about or set up or accepted; especially long established.

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Nonrational is an antonym for established.

Nonrational adjective - Not using or following good reasoning.

Usage example: was so upset that he was completely nonrational for a moment

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Established is an antonym for nonrational.

Cite this Source

Nonrational and Established. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/established/nonrational

Established & Nonrational. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/established/nonrational>.

Nonrational or Established. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/established/nonrational.

Google Ngram Viewer shows how "established" and "nonrational" have occurred on timeline