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Definitions

irrationally

[ih-rash-uh-nl-ee, -rash-nl-] / ɪˈræʃ ə nl i, -ˈræʃ nl- /
ADVERB
illogically
Synonyms


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.

The most important lesson from that irrationally exuberant time is that overvaluation can lead to below-average returns for years — and even decades.

From MarketWatch • Mar. 13, 2026

Some American stocks are being irrationally hit by fears of disruption by artificial intelligence.

From Barron's • Feb. 10, 2026

I found myself irrationally angry about the way T-Mobile convinced the Backstreet Boys to parody “I Want It That Way” with facile sloganeering.

From Slate • Feb. 8, 2026

Tom Cross KC, barrister for the two women, told the court that in deciding the clinic should continue to be registered, "the CQC has acted irrationally".

From BBC • Jun. 24, 2025

He disliked Mordred irrationally, as a dog dislikes a cat—and he felt ashamed of the dislike, because it was a confused principle of his to help the younger Knights.

From "The Once and Future King" by T. H. White




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