rationality
/ˌræʃəˈnæləti/ (bre, ipa) · /ˌræʃəˈnæləti/ (ame, ipa) · /ˌra-shə-ˈna-lə-tē/ (ame, mw)
rationality — noun
1. the quality of making judgments or decisions by thinking through facts and logic
the quality of making judgments or decisions by thinking through facts and logic rather than acting on emotion or impulse
The judge praised the committee for the rationality of their decision to fund only proven programs.
collocation: rationality of [decision/argument/approach]
Andrew questioned the rationality of spending half his salary on rent each month.
question the rationality of [something]
During the crisis, the prime minister urged everyone to act with rationality and calm.
Sivan's argument was admired for its rationality and clear structure.
The company's decision showed little rationality — it was based mostly on fear.
- reason
broader term referring to the thinking ability itself ('the power of reason') rather than the quality of a specific decision
- logic
focuses on formal, step-by-step reasoning where conclusions follow necessarily from premises; slightly narrower than rationality
- reasonableness
emphasises fairness, moderation, and practical good sense in judgment, not just abstract logic
- sense
practical everyday good judgment ('common sense'); less formal and less intellectual than rationality
- emotion
when used in contrast to reason-based thinking
文法句型
the rationality of [noun phrase]
act with rationality
question the rationality of [noun phrase]