rationale

Meanings

1. 1nouncountableformal

   The reasoning that explains why a decision was made or something is done.

   Grammar: Usually followed by behind or for: the rationale behind the rule.

   Patterns

   • the rationale behind something
   • the rationale for something

   The manager explained the rationale behind the new schedule.

   I don't understand the rationale for closing the library.

   The report sets out the rationale for the project.

2. 2nouncountableformal

   A statement that sets out the principles or reasons on which something is based.

   Grammar: Used for written explanations, as in a rationale for a course or policy.

   Patterns

   • a rationale for something
   • provide a rationale

   The teacher wrote a rationale for each lesson.

   The grant application includes a clear rationale.

   Each law needs a public rationale.

Word forms

Common combinations

the rationale behind

What is the rationale behind this change?

clear rationale

The plan has a clear rationale.

provide a rationale

Applicants must provide a rationale for the request.

underlying rationale

The underlying rationale was to save money.

sound rationale

There was a sound rationale for waiting.

Synonyms and how they differ

reasoning

Reasoning describes the thought process itself, while rationale is the explanation given afterward.

justification

Justification aims to defend an action as right, whereas rationale simply explains why.

logic

Logic stresses sound structure of thought, and is less specific to a particular decision.

basis

Basis is the foundation of a decision and is broader and less explanatory.

Word family

rational adjective

based on reason and clear thought

rationalize verb

to explain or justify, often with false reasons

rationality noun

the quality of being reasonable

rationally adverb

in a sensible, reasoned way

Commonly confused: rationale or rationalization?

Practice

Make it your own

Write a sentence using “rationale”, then check it and compare it with the examples above.

Explore more words