Noah Webster's Dictionary (a.) Not concerned; not anxious or solicitous; easy in mind; carelessly secure; indifferent; as, to be unconcerned at what has happened; to be unconcerned about the future.

Multi-Version Concordance Unconcerned (2 Occurrences) Job 39:16 She deals harshly with her young ones, as if they were not hers. Though her labor is in vain, she is without fear, (See NAS) Ezekiel 16:49 Behold, this was the iniquity of your sister Sodom: pride, fullness of bread, and prosperous ease was in her and in her daughters; neither did she strengthen the hand of the poor and needy. (See NIV)