adjective
withdrawn in mind and inattentive to external matters
seemed abstracted and remote
Synonyms: absent, absentminded, bemused, distrait, faraway, inconscient, lost, preoccupied
Related Word: engrossed, intent, rapt; oblivious, unmindful, unminding; heedless, inattentive
Idioms: in a brown study, lost in thought, lost to the world
Contrasted words: attentive, vigilant, watchful, wide-awake; noticing, noting, observant, seeing
Antonyms: alert