indifference

Noun

• the trait of remaining calm and seeming not to care; a casual lack of concern

• the trait of lacking enthusiasm for or interest in things generally

• apathy demonstrated by an absence of emotional reactions

• unbiased impartial unconcern

Related words

• Synonyms: 
  nonchalance , unconcern , apathy , numbness , spiritlessness , emotionlessness , impassivity , impassiveness , phlegm , stolidity , unemotionality