non-committal
US /ˌnɑːn kəˈmɪt.əl/
UK /ˌnɑːn kəˈmɪt.əl/

1.
unverbindlich, ausweichend, neutral
not expressing or revealing commitment to a definite opinion or course of action; unrevealing.
:
•
His answer was a rather non-committal shrug.
Seine Antwort war ein eher unverbindliches Achselzucken.
•
The politician gave a non-committal statement about the new policy.
Der Politiker gab eine unverbindliche Erklärung zur neuen Politik ab.