carefreeness russian

• бесшаба́шность

  recklessness, foolhardiness, reckless daring, devil-may-care attitude

  carefreeness, unconcern, happy-go-lucky attitude

  wild exuberance, high spirits, boisterousness

• безду́мье

  thoughtlessness, mindlessness, unconcern, carefreeness

  lack of a clear line, muddle-headedness, confusion