Definitions
working or spreading in a hidden and usually injurious way
Word origin
From Middle English, from Old French pernicios, from Latin perniciōsus (“destructive”), from perniciēs (“destruction”), from per (“through”) + nex (“slaughter, death”).
Used in a sentence
“pernicious influence”
“pernicious effects”
“They warned of the pernicious effects of misinformation.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Quietly harmful”10 letters
Not quite right?
"Search similar patterns."
P_________