unenthusiastic

US /ˌʌn.ɪn.θuː.ziˈæs.tɪk/
UK /ˌʌn.ɪn.θuː.ziˈæs.tɪk/
1.

열정적이지 않다

showing little or no enthusiasm:

:
•
Josh seemed unenthusiastic about the plan.