indifference (n.)

mid-15c., "quality of being neither good nor bad, neutral quality," from Latin indifferentia "want of difference, similarity," abstract noun from indifferentem (see indifferent). From late 15c. as "lack of prejudice, impartiality;" from 1650s as "state of being apathetic." Meaning "comparative mediocrity, inexcellence"" is from 1864.