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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.

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

Rather, he is doing something else entirely, something arguably more pernicious.

From Salon • Apr. 13, 2026

“Giant” is a probing character study that raises the discomfiting question of how a man of intelligence and imagination could hold such atavistic and pernicious views.

From The Wall Street Journal • Mar. 24, 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

Grube told me that he thought the kings of Kaan, never allied with Teotihuacan, may have wanted to stamp out pernicious foreign influences—xenophobia is a powerful motive in every culture.

From "1491" by Charles C. Mann




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