Usage patterns
〈人〉が無気力になるfor someone to become apathetic/listless
Lately he's become apathetic about everything he does.
無気力な態度an apathetic attitude
His apathetic attitude at the meeting was concerning.
無気力に陥るto fall into a state of apathy
After a long string of failures, she fell into apathy.
無気力から抜け出すto break out of apathy
I'm trying to break out of my apathy with morning exercise.