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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.

Patients with pernicious anemia who had been close to death often improved dramatically within weeks of eating liver-rich diets.

From Science Daily • Jun. 25, 2026

It would be unfair to depict Greenspan’s influence as invariably pernicious.

From Los Angeles Times • Jun. 25, 2026

There’s a pernicious form of viral video that’s reshaping our collective reality, and it’s not even related to artificial intelligence.

From Slate • May 6, 2026

“When something is consistently wrong, the good thing is you know not to trust it. But when things are mostly right but sometimes wrong, that’s the most pernicious one.”

From The Wall Street Journal • Apr. 14, 2026

Just about all he could find in its favor was that it paid well and liberated children from the pernicious influence of their parents.

From "Catch-22" by Joseph Heller




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