Posteriori and Priori

Opposite meaning words

Posteriori adjective - Involving reasoning from facts or particulars to general principles or from effects to causes.

Usage example: a posteriori demonstration

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Priori is an antonym for posteriori.

Priori adjective - Involving deductive reasoning from a general principle to a necessary effect; not supported by fact.

Usage example: an a priori judgment

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Posteriori is an antonym for priori.

Nearby Word: priority

Cite this Source

Priori and Posteriori. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/posteriori/priori

Posteriori & Priori. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/posteriori/priori>.

Priori or Posteriori. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/posteriori/priori.

Google Ngram Viewer shows how "posteriori" and "priori" have occurred on timeline