pernicious

Meaning

Having a harmful effect, especially in a gradual or subtle way.

Gradually but seriously harmful or damaging.

Example Sentences

The pernicious effects of smoking are well-documented.

Misinformation can have pernicious effects on society.

Synonyms

harmful, dangerous, Destructive, Malicious, Harmful

Entry 1

harmful, dangerous

Entry 2

Destructive, Malicious, Harmful

Antonyms

beneficial, positive, Innocuous, Harmless, Safe

Entry 1

beneficial, positive

Entry 2

Innocuous, Harmless, Safe