Rationale and Theory

Rationale

Rationale noun - A statement given to explain a belief or act.
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Synonyms for Rationale

Theory is a synonym for rationale in opinion topic. In some cases you can use "Theory" instead a noun "Rationale", when it comes to topics like action, principle, reason. popular alternative

Theory

Theory noun - An idea that is the starting point for making a case or conducting an investigation.

Rationale is a synonym for theory in opinion topic. You can use "Rationale" instead a noun "Theory", if it concerns topics such as hypothesis. popular alternative

How words are described

good good rationale good theory
particular particular rationale particular theory
better better rationale better theory
similar similar rationale similar theory
Other adjectives: common, original, logical, actual, entire, real, great, main, possible, plausible, above, basic, different, scientific.

Both words in one sentence

  • For works after 1991, there is a 50% chance of "the butterfly effect" and/or "chaos theory" being the rationale.
  • Series / Chuck It Gets Easier: Pretty much the rationale behind the "red test", which forces wannabe agents to commit cold-blooded murder under orders and, in theory, make it easier for them to kill again when needs be.
Cite this Source
Theory and Rationale. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/rationale/theory
Rationale & Theory. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/rationale/theory>.
Theory or Rationale. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/rationale/theory.
Google Ngram Viewer shows how "rationale" and "theory" have occurred on timeline