Synonyms of absent

1 Syllable
null, out, gone, ghost, lost, rapt, off
2 Syllables
no-show, depart, run-off, awol, astray, wanting, hooky, away, nuller, missing, listless, mopish
3 Syllables
wrapped-up, amnesic, forgetful, absented, nonextant, removed, oblivious, absentee, absenting, faraway, omitted, vanished, nirvanic, inconscient, ungrounded, unwatchful, airheaded, bemused, preoccupied
4 Syllables
woolgathering, unredeemed, otherwhere, nonexistent, unsanctioned, amnemonic, undiscerning, unperceiving, unobserving, absent-minded, elsewhere
5 Syllables
unrecognizing, inattentive