adj. 25B6; adjective ABSENT-MINDED, distracted, preoccupied, in a world of one's own, with one's head in the clouds, daydreaming, dreamy, inattentive, thoughtful, pensive, lost in thought, deep in thought, immersed in thought, wool-gathering, in a brown study, musing, brooding, absent, distrait; informal miles away.
attentive.