indifference به انگلیسی
From Longman Dictionary
in‧dif‧fer‧ence /ɪnˈdɪfərəns/ ●○○ noun
lack of interest or concern
عدم علاقه یا نگرانی
Example
his apparent indifference to material luxuries
There was no disagreement in accusing the National government of callousness and indifference
They fought incompetence, inclement weather and indifference
He seem bored now; and he blinked at Mitchell with imperious indifference
This hypothesis generates an infinite set of indifference curves which are convex to the L axis