unrecognizing

blind deaf inattentive unconcerned unfamiliar uninformed

absent absentminded absorbed abstracted amnesic blundering careless disregardful distracted dreamy forgetful forgetting gone heedless incognizant inconversant insensible neglectful negligent not all there out to lunch overlooking preoccupied regardless spacey strung-out unacquainted unconscious undiscerning uninstructed unknowing unmindful unnoticing unobservant unwitting zonked

attentive aware

concerned conscious mindful sensitive understanding