Apathetically
/ˌæpəˈθetɪkli/
Definition 1 of 1
Pro Tip 1/3Emotional Disinterest
The word conveys a lack of emotional response or care towards a situation. 
She listened to his excuses apathetically, not caring about the reasons.
Pro Tip 2/3Negative Tone
'Apathetically' often implies a negative judgment or unfavorable view of someone's lack of response. 
The committee members watched the presentation apathetically.
Pro Tip 3/3Avoid Overuse
Using 'apathetically' too frequently can make a text seem overly negative or critical. 
Even when praised, he smiled apathetically, which confused his colleagues.