Un·mer·ci·ful a. Not merciful; indisposed to mercy or grace; cruel; inhuman; merciless; unkind. -- Un*mer*ci*ful*ly, adv. -- Un*mer*ci*ful*ness, n.
adv : without pity; in a merciless manner; "he was mercilessly
trounced by his opponent in the House" [syn: mercilessly,