unconcerned russian
начха́вший
indifferent, uncaring, dismissive, unconcerned
благоду́шествовавший
complacent, unconcerned, good-natured
начиха́вший
indifferent, apathetic, careless, unconcerned
благоду́шно
good-naturedly, genially, kindly, amiably
placidly, serenely, complacently, unconcernedly
Examples
I am unconcerned with the problem.



















