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These problems have arisen as a result of indifference.

She assumed an air of indifference.

He feigned indifference to the girl.

His total indifference to what people think of him surprises me.

indifference to surroundings

The indifference in the choice offerred really put me off.

It is frustrating to see the indifference that some rich people show toward those less fortunate than themselves.

indifference to childeren’s harm is unacceptable

He sometimes affects indifference to what's happening around him.