The word "apathetic" means lacking interest, concern, or enthusiasm about something. It refers to a feeling of indifference or not caring about a particular situation or topic. Full definition
They have now become apathetic about the club, the football we play, and even football as a whole. (arsenalarsenal.net)
Seems there are still plenty of apathetic minions of Arsene in existence despite many years of the same old rubbish. (justarsenal.com)
Parental involvement is a major asset to us as educators — without it, many students fall behind and become apathetic about their education. (businessinsider.com)