Synonyms of unobserving

1 Syllable
lost, rapt, blind
2 Syllables
vague, dreamy, absent, bored, distraught, thoughtless, musing, heedless, remiss, listless, off-guard, distrait
3 Syllables
distracted, diverted, regardless, removed, oblivious, neglectful, faraway, unheeding, unmindful, unthinking, unconscious, careless, unwatchful, preoccupied
4 Syllables
indifferent, apathetic, inadvertent, absentminded, unnoticing, inobservant, undiscerning, unperceiving, unobservant, scatterbrained
5 Syllables
inattentive