indifferent

A person who is indifferent or apathetic.

Not caring or concerned; uninterested, apathetic.

"He was indifferent to the proposal, since it didn’t affect him, either way."

Indicating or reflecting a lack of concern or care.

"She responded with an indifferent shrug."

Mediocre (usually used negatively in modern usage).

"The long distance and the indifferent roads made the journey impossible."

To some extent, in some degree (intermediate between very and not at all); moderately, tolerably, fairly.

"The face of the Moon appearing to me to be full of indifferent high mountains..."