Abstractedly
/æbˈstræktɪdli/
Definition 1 of 1
Pro Tip 1/3Mind Elsewhere
Use 'abstractedly' when describing someone whose thoughts are not focused on the present situation. 
During the lecture, he nodded abstractedly, clearly lost in his own world.
Pro Tip 2/3Subtle Disconnection
'Abstractedly' subtly implies a disconnect from immediate surroundings due to deep thoughts or distraction. 
She answered the question abstractedly, barely glancing up from her book.
Pro Tip 3/3Not Negative
'Abstractedly' is not inherently negative; it can simply describe deep thought or temporary inattention. 
He smiled abstractedly, still mulling over the good news he had received.