Adjective
1. lacking in interest or care or feeling;
"the average American...is unconcerned that his or her plight is the result of a complex of personal and economic and governmental actions...beyond the normal citizen's comprehension and control""blithely unconcerned about his friend's plight"2. easy in mind; not worried;
"the prisoner seems entirely unconcerned as to the outcome of the examination"3. not occupied or engaged with;
"readers unconcerned with style"