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Definitions

rationality

[rash-uh-nal-i-tee] / ˌræʃ əˈnæl ɪ ti /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"These rules lack humanity and rationality, and they oppress us every day."

From Barron's • Jan. 9, 2026

We comfort the comfortable, and we look for hope in norms and in institutions and in rationality.

From Slate • Dec. 17, 2025

It’s the second factor that often keeps takeover bids alive long after the proposed deals lose their economic rationality.

From Los Angeles Times • Dec. 11, 2025

This work challenges long-held assumptions that rationality, defined as forming and updating beliefs based on evidence, belongs only to humans.

From Science Daily • Nov. 16, 2025

To add insult to injury, the Pythagoreans soon discovered that the golden ratio, the ultimate Pythagorean symbol of beauly and rationality, was an irrational number.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife




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