беспечный(a policy or attitude of letting things take their own course, without interfering.
"a laissez-faire attitude to life" (Oxford Dictionary) • For more than a dozen years, the municipality refused to issue debentures to finance improvements. Roads often followed the construction of housing. This laissez-faire atmosphere drove frustrated West Side residents to secede and form the Municipality of Point Grey in 1906. (Harold Kalman)ART Vancouver)