irrationally

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.

But rational investors also know that markets can behave irrationally, and historians have filled books with examples of world leaders who have chosen to irrationally launch or extend wars, even at great economic cost.

From Barron's • May 1, 2026

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

Defending Rumiantsev, Sasha Wass KC described Trump as a "wholly unreliable witness" who was "irrationally jealous" of her client.

From BBC • Jan. 26, 2026

I can sometimes get irrationally upset by movies with an incredible premise that is poorly executed.

From Salon • Feb. 16, 2025

In hindsight, Andy was acting irrationally and had plainly slipped well beyond routine hypoxia, but I was so mentally impeded myself that it simply didn’t register.

From "Into Thin Air" by Jon Krakauer