Definition of kryptonite in English:

Share this entry


Pronunciation: /ˈkrɪptənʌɪt/


[mass noun]
(In science fiction) an alien mineral with the property of depriving Superman of his powers: figurative girls of her sort are kryptonite to the developing hearts of adolescent boys
More example sentences
  • Remember when polystyrene foam was environmental kryptonite?
  • These things are like kryptonite to terrorists.
  • Did the Raiders uncover Pennington's kryptonite?
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.