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Definitions

irrational

[ih-rash-uh-nl, -rash-nl] / ɪˈræʃ ə nl, -ˈræʃ nl /


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.

She did some moves that were pretty irrational, and she would have times where she would act on impulse, and it became more and more unstable and unsafe.

From Los Angeles Times • May 13, 2026

On its own, a stop loss is technically irrational.

From MarketWatch • May 12, 2026

“We welcome good, healthy competition. The LIV Saudi Golf League is not that. It’s an irrational threat.”

From The Wall Street Journal • Apr. 15, 2026

Asked later about stress levels on the ground, NASA's associate administrator said "it's impossible to say you don't have any irrational fears left."

From Barron's • Apr. 10, 2026

Even healthy people cried and said irrational things when their parents died.

From "Kindred" by Octavia Butler




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