Diagnostic and Rational

Diagnostic

Diagnostic adjective - Serving to identify as belonging to an individual or group.
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Synonyms for Diagnostic

Rational and diagnostic are semantically related. In some cases you can use "Rational" instead an adjective "Diagnostic".

Rational

Rational adjective - Having the ability to reason.

Diagnostic and rational are semantically related. Sometimes you can use "Diagnostic" instead an adjective "Rational".

Cite this Source
Rational and Diagnostic. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/diagnostic/rational
Diagnostic & Rational. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/diagnostic/rational>.
Rational or Diagnostic. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/diagnostic/rational.
Google Ngram Viewer shows how "diagnostic" and "rational" have occurred on timeline