pernicious
5 synonyms and 4 antonyms for pernicious, grouped by meaning and by how common each one is.
Adj — Causing harm gradually or in a way that is not immediately obvious.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Antonyms
How to use pernicious
The word patterns that sound natural to a native speaker.
Etymology
From Latin perniciosus ("destructive"), from pernicies ("ruin, death").
Full origin of pernicious →