Middle-of-the-road and Uncontroversial

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

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

Uncontroversial adjective - Unlikely to provoke controversy or offense.

Middle-of-the-road and uncontroversial are semantically related. Sometimes you can use "Middle-of-the-road" instead an adjective "Uncontroversial".