insouciance
1 of 1noun/ɪnˈsuːsiəns/
1
a way of behaving that is relaxed, as if one has no problems or concerns
- His insouciance about the approaching deadline was surprising.
- Despite the financial troubles, he maintained a remarkable insouciance.
- She wore a smile of insouciance, ignoring the tension around her.
- They were taken aback by her insouciance in the face of adversity.
- Her insouciance about the upcoming exam impressed her friends.