Dictionary

A person who is indifferent or apathetic.

Not caring or concerned; uninterested, apathetic.

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

Indicating or reflecting a lack of concern or care.

Example: She responded with an indifferent shrug.

Mediocre (usually used negatively in modern usage).

Example: The long distance and the indifferent roads made the journey impossible.

Having no preference or bias, being impartial.

Example: I am indifferent between the two plans.

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

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