unconcern
noun
[ ʌnkənˈsəːn ]
• a lack of worry or interest, especially when surprising or callous.
• "he is famed for his ‘laid-back’ attitude, his apparent unconcern about his actions"
Similar:
indifference,
apathy,
lack of concern,
lack of interest,
uninterestedness,
nonchalance,
equanimity,
insouciance,
lack of involvement,
passivity,
dispassionateness,
dispassion,
detachment,
aloofness,
remoteness,
reserve,
