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CEFR C2 — Proficiency

Pernicious

Definition

(formal) Causing harm or damage, especially in a gradual or subtle way; having a detrimental effect. Often used to describe influences, behaviors, or ideas that are insidious and destructive.

Example Sentences

1The pernicious effects of smoking on cardiovascular health are well-documented, yet many people struggle to quit.
2Is the emphasis on standardized testing having a pernicious impact on the quality of education in our schools?
3The pernicious influence of social media on young people's self-esteem has become a pressing concern for parents and educators.
4Avoid pernicious habits like procrastination and perfectionism, which can hinder your productivity and overall well-being.
5There is a growing awareness of the pernicious role that systemic racism plays in perpetuating inequality and social injustice.

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