Idiom:  in a world of one’s own


Idiom:  in a world of one’s own

  •  in such deep thought you don’t notice anything around you

Example sentences

  • I’m sorry I wasn’t listening a moment ago—I was in a world of my own.
  • Our teenage daughter is in a world of her own these days.
  • When my daughter reads a book, she's in a world of her own and you can't get her attention unless you take the book out of her hands.
  • The bus driver was in a world of his own and didn't notice when we asked how much the fare was.
  •  Please pay attention to these instructions. You look like you're in a world of your own.
  • "What is your dog doing rolling in the flowers?" " Who knows? He's always in a world of his own."
  • Is everything okay? You've been in a world of your own all afternoon.
  • My husband and I were both in a world of our own looking out the train window train and we missed our stop.


  • lost in thought
  • a million miles away
  • out to lunch
  • out in space
  • lost in space

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