apathetic
adj.adj. showing no interest or energy to do anything. You use this word to describe someone who just doesn't care about what is happening around them.
adj. showing or feeling no interest, enthusiasm, or concern.
He became completely apathetic about his schoolwork after failing the first exam.
The manager's apathetic response to the safety complaints frustrated the factory workers, who felt their serious concerns were being ignored.
Prolonged exposure to the relentless 24-hour news cycle can leave even the most passionate citizens feeling apathetic, as the sheer volume of global crises overwhelms their capacity for empathy.
From apathy + -etic.
The adjective typically describes a lack of emotional response or motivation toward matters of general importance, and frequently takes the preposition 'about' or 'toward'.