Middle-ground and Tight-lipped

Tight-lipped and middle-ground are semantically related. In some cases you can use "Tight-lipped" instead an adjective phrase "Middle-ground".

Tight-lipped adjective - Tending not to speak frequently (as by habit or inclination).

Middle-ground and tight-lipped are semantically related. Sometimes you can use "Middle-ground" instead an adjective phrase "Tight-lipped".