grey area
noun /ˌɡreɪ ˈeəriə/
/ˌɡreɪ ˈeriə/
(US English usually gray area)
- an area of a subject or situation that is not clear or does not fit into a particular group and is therefore difficult to define or deal with
- Exactly what can be called an offensive weapon is still a grey area.
- The new rules for police procedure cleared up a lot of grey areas.