Middle-of-the-road and Per diem

Middle-of-the-road adjective - Avoiding major social change or extreme political ideas.

Per diem and middle-of-the-road are semantically related. In some cases you can use "Per diem" instead an adjective phrase "Middle-of-the-road".

Per diem noun - A daily allowance for living expenses (especially while traveling in connection with your job).

Middle-of-the-road and per diem are semantically related. Sometimes you can use "Middle-of-the-road" instead an adjective phrase "Per diem".