absent-minded

adjective

Meaning

Frequently forgetful or preoccupied with one's own thoughts to the point of being unaware of immediate surroundings.

Examples

  • The absent-minded professor often arrived at his lecture hall wearing two different shoes.
  • She is so absent-minded that she once left her car keys in the freezer.

Synonyms: forgetful, distracted, scatterbrained, preoccupied