Synonyms and related words :
abroad, absent, absentminded, absorbed, abstracted, away, bemused, castle-building, daydreaming, daydreamy, dreaming, dreamy, drowsing, ecstatic, elsewhither, engrossed, faraway, half-awake, in a reverie, in the clouds, lost, lost in thought, meditative, mooning, moonraking, museful, musing, napping, nodding, not here, oblivious, pensive, pipe-dreaming, preoccupied, rapt, somewhere else, stargazing, taken up, transported, unconscious, woolgathering, wrapped in thought,