ill-defined

US /ˌɪlˈdɪfaɪnd/
UK /ˌɪlˈdɪfaɪnd/
"ill-defined" picture
1.

schlecht definiert, unklar

not clearly or sharply defined or delineated

:
The boundaries of the property were ill-defined.
Die Grenzen des Grundstücks waren schlecht definiert.
His role in the project was ill-defined, leading to confusion.
Seine Rolle im Projekt war schlecht definiert, was zu Verwirrung führte.