modified
abstracted, preoccupied, inattentive, absent-minded, absorbed, absent,
heedless, distracted, forgetful, unmindful, forgetting,
unrecognizing, unnoticing, blundering, unobservant, unconscious,
unaware, overlooking, stargazing, woolgathering, spaced out*, spacey*; see also
absent-minded, dreamy 1.
Antonyms observant*, attentive, mindful.