Synonyms and related words :
absent, absentminded, absorbed, abstracted, apart, asunder, at a distance, away, bemused, castle-building, daydreaming, daydreamy, disregardful, distal, distant, distrait, dreaming, dreamy, drowsing, ecstatic, elsewhere, engrossed, exotic, far, far off, far-flung, far-off, half-awake, heedless, in a reverie, in the clouds, long-distance, long-range, lost, lost in thought, meditative, mooning, moonraking, museful, musing, napping, nodding, oblivious, outlying, pensive, pipe-dreaming, preoccupied, rapt, remote, removed, separated, somewhere else, stargazing, taken up, transported, unconscious, unheeding, unmindful, woolgathering, wrapped in thought