The union representative remained indifferent to the company's latest offer.
John felt indifferent or uninterested in the girl's gossip.
"He was indifferent to the sufferings of others"
I am indifferent to your attitude, seek attention elsewhere. another use: "I am left feeling indifferent after contemplation of..." "I like the visual impact, it leaves one w/out indifference"
She/He was indifferent about the mean comments everyone was throwing at him/her because she was deaf.