a grey area

grey area

A concept or topic that is not clearly defined or that exists somewhere between two extreme positions. Primarily heard in Australia. There's a large grey area regarding whether the use of the new surveillance technology is lawful.
See also: area, grey

a grey area

COMMON If you call something a grey area, you mean that it is unclear. Note: `Grey' is usually spelled `gray' in American English. There are many grey areas in the law affecting stolen animals. Tabloid papers paint all sportsmen as heroes or villains. There is no grey area in between.
See also: area, grey