Synonyms and related words :
absent, absentminded, absorbed in, abstracted, bemused, buried, buried in, buried in thought, castle-building, caught up in, concentrating, contemplating, contemplative, daydreaming, daydreamy, deep, devoted, devoted to, dreaming, dreamy, drowsing, ecstatic, elsewhere, engaged, engaged in thought, engrossed, engrossed in, engrossed in thought, enmeshed in, entangled in, far-gone, faraway, half-awake, immersed, immersed in, immersed in thought, implicated in, in a reverie, in the clouds, intent, intent on, introspective, involved, involved in, lost, lost in, lost in thought, meditating, meditative, monomaniacal, monopolized, mooning, moonraking, museful, musing, napping, nodding, oblivious, obsessed, occupied, pensive, pipe-dreaming, preoccupied, rapt, single-minded, somewhere else, stargazing, studious, studying, submerged in, swept up, taken up, taken up with, tied up in, totally absorbed, transported, unconscious, woolgathering, wrapped, wrapped in, wrapped in thought, wrapped up, wrapped up in