Perfunctorily
/pərˈfʌŋktrəli/
Definition 1 of 1
Pro Tip 1/3Lack of Interest
Shows a minimal level of care or effort, often due to disinterest. 
He replied to the invitation perfunctorily, not really wanting to attend.
Pro Tip 2/3Routine Tasks
Used when actions are routine and performed without much thought. 
She perfunctorily brushed her teeth, still half-asleep.
Pro Tip 3/3Emotional Negative
Often has a negative emotional connotation, implying dissatisfaction. 
His applause was perfunctory, clearly unimpressed by the performance.