Synonyms of absent-minded

1 Syllable
lost, rapt
2 Syllables
spacey, dreamy, withdrawn, absent, dreaming, moony, mooning, heedless, distrait
3 Syllables
wrapped-up, distracted, surroundings, forgetful, remote, removed, oblivious, faraway, unheeding, unmindful, unthinking, absorbed, unconscious, nirvanic, abstracted, careless, engrossed, airheaded, bemused, daydreaming, inconscient, preoccupied
4 Syllables
woolgathering, amnemonic, unobservant, scatterbrained
5 Syllables
inattentive, pococurante