unenthused
/ˌʌnɛnˈθjuːzd, -ˈθjuːzd, ˌʌnθjuːˈzɪst/Definitions
1. adjective
lacking enthusiasm or interest; unenthusiastic
“The unenthused crowd was a stark contrast to the energetic fans from the previous game.”
2. noun
a person who is unenthusiastic or lacks interest
“The manager had to deal with an unenthused team after their recent string of losses.”