blase — unimpressed or indifferent to something because one has experienced or seen it so often before

a well-dressed person sits slumped in their seat, checking their watch with a completely uninterested expression while spectacular circus acts perform around them. Their eyes show no excitement as trapeze artists swing overhead and fire dancers create dazzling displays. Meanwhile, everyone else in the audience gasps with wonder and points excitedly at the amazing performances. Children and adults around the bored person lean forward with wide eyes and open mouths in pure amazement. The stark contrast shows someone who has clearly seen too many similar shows before. being unimpressed or indifferent to something because one has experienced or seen it so often before