Open Dictionary
mouse here to listen, click to choose/add more
Location: USA
Source: Learn That Word
Profile URL:

Are you a native English speaker? How do you pronounce this word?

Thank you for contributing!
upload mp3 file or record now it's easy, promised!

{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

Harmful; injurious. Also: Tending to kill or hurt.

Usage examples (34)
  • Three things too much, and three too little are pernicious to man; to speak much, and know little; to spend much, and have little; to presume much, and be worth little.
  • It is time to undertake the reform of what I call a pernicious prejudice.
  • My eyes overflow, my dear Pauline; and Maitland will chide me for indulging what he calls a pernicious sensibility.
  • It skews consumption and investment in pernicious ways. for more
Tutoring comment

Tutoring comment not yet available...

add more
The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google,,, and YouTube,,,,, as well as the generous Creative Commons community.