Words / C1

rash-uh-NAHL/ˌræʃəˈnɑːl/

A rationale is the set of reasons behind a decision or method: the rationale for the sample, a clear rationale. Reason is everyday and can be one motive; a rationale is the worked-out case. Rational is the adjective (reasonable); ration is a fixed allowance — different word. Do not write rationale for a feeling with no argument attached.

Meaning

The set of reasons that explain a decision, plan, or belief.

Examples

• “The paper never states a clear rationale for the sample size.”
• “The ethics board asked for the rationale, not another adjective of “importance”.”
• “A budget cut still needs a rationale if the minutes are going to survive an audit.”

Good to know

the rationale for/behind + decision. Adjective: rational. Mix-up: ration (an allowance). Not a vague hunch.

Near in meaning

reasoning

New