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Definitions

pernicious

[per-nish-uhs] / pərˈnɪʃ əs /


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 when things are mostly right but sometimes wrong, that’s the most pernicious one.”

From The Wall Street Journal • Apr. 14, 2026

“In an environment where you’re fighting for a promotion … It’s just a further incentive to agents to engage in this kind of activity. So it’s pernicious on multiple levels.”

From Salon • Apr. 6, 2026

High borrowing costs, he said, have had a pernicious impact on lower-income consumers without producing clear gains in inflation.

From Barron's • Jan. 26, 2026

A similarly pernicious logic has insulated law enforcement from legal accountability for generations.

From Slate • Jan. 25, 2026

The reasoning behind the rule is not pernicious: the lawmakers presumed that a prison visit would negatively affect the sensitive psyches of children.

From "Long Walk to Freedom" by Nelson Mandela




Vocabulary lists containing pernicious