unconcern
un.con.cern \.*n-k*n-'s*rn\ n 1: lack of care or interest : INDIFFERENCE 2: freedom from excessive concern or anxiety
Webster's English Dictionary Webster's English Dictionaryun.con.cern \.*n-k*n-'s*rn\ n 1: lack of care or interest : INDIFFERENCE 2: freedom from excessive concern or anxiety