merciless - ruthless - unrelenting - pitiless - unsympathetic - harsh - severe - callous - cold-hearted - unfeeling - hard-hearted - implacable - inexorable - remorseless - unmerciful - unforgiving - stern - cruel - brutal - relentless - uncompassionate - inhumane - heartless - indifferent - uncharitable - stony-hearted - unkind - iron-hearted - cold - grim - unyielding - adamant - unbending - unremitting - unpardonable - unappeasable - unplacable - unrelentless
Unpitying describes a lack of compassion, sympathy, or mercy towards others. A person or action that is unpitying is harsh, relentless, and unyielding, showing no consideration or kindness to those experiencing difficulty or suffering.