Webster's Revised Unabridged Dictionary · 1913

Unfeeling

Unfeeling , adjective

1.
Destitute of feeling; void of sensibility; insensible; insensate.
2.
Without kind feelings; cruel; hard-hearted.
To each his sufferings: all are men, Condemned alike to groan; The tender for another's pain, Th' unfeeling for his own. — Gray