“+ adjective
Etymology: un- (I) + concerned
1. : lacking care, interest, or feeling
convincing the unconcerned , the apathetic, and the downright hostile — Benjamin Fine
unconcerned if his girl deserts him — K.E.Read
2. : not occupied or engaged
readers unconcerned with style and philosophical illumination — R.A.Cordell
3. : not anxious or solicitous : easy in mind : not worried
the prisoner seems entirely unconcerned as to the outcome of the examination — D.D.Martin
Synonyms: see indifferent