Amateurish and Middle-of-the-road

Amateurish adjective - Lacking or showing a lack of expert skill.

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

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

Amateurish and middle-of-the-road are semantically related. Sometimes you can use "Amateurish" instead an adjective phrase "Middle-of-the-road".