1. definition: causing great harm, destruction, injury, or death causing great harm, destruction, injury, or death fatal or likely to cause death fatal or likely to cause death wicked wicked

2. pronunciation purr NIH shus

3. synonyms: harmful harmful deleterious deleterious destructive destructive detrimental detrimental devastating devastating iniquitous iniquitous malevolent malevolent malignant malignant noxious noxious

4. related forms: noun nounperniciousness adverb adverbperniciously

5. Many snakes have a justifiable reputation for being pernicious Many snakes have a justifiable reputation for being pernicious.

6. The pernicious image of the Grim Reaper evokes fear.

7. We should omit pernicious foods from our diets in order to maintain a healthy lifestyle.

8. The witch tempted Snow White with the pernicious apple.

9. The perniciousness of cancer makes its diagnosis extremely frightening.

10. Due to the perniciousness of second-hand smoke, smoking cigarettes has been banned in public areas.

11. The perniciousness of the storm was heightened when a tornado touched down on the community.

12. The vicious pit bull perniciously growled at the mailman.

13. “I’ll get you, my pretty,” the Wicked Witch of the West perniciously cackled.

14. The mean girls perniciously gossiped behind the other girl’s back.