from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Deep in thought and heedless of present circumstances or activities; preoccupied.
from the GNU version of the Collaborative International Dictionary of English
- adj. Absent in mind; abstracted; preoccupied.
from The Century Dictionary and Cyclopedia
- Characterized by absence of mind (see absence); inattentive to or forgetful of one's immediate surroundings.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. lost in thought; showing preoccupation
absent + minded (Wiktionary)