Synonyms and related words :
asleep, blank, blankminded, calm, cataleptic, catatonic, cold, comatose, dead, desireless, doped, drugged, empty, empty-headed, fatuous, half-conscious, inane, inappetent, incogitant, loveless, narcotized, oblivious, out, out cold, out of it, passionless, passive, quietistic, relaxed, semiconscious, senseless, spaced out, stoned, strung out, thoughtfree, thoughtless, tranquil, unambitious, unaspiring, unattracted, unconscious, undesirous, uneager, unenthusiastic, unideaed, unintellectual, unoccupied, unreasoning, unthinking, vacant, vacuous, zonked, zonked out