unmerciful

[ uhn-mur-si-fuh l ]

/ ʌnˈmɜr sɪ fəl /

merciless; relentless; severe; cruel; pitiless.

unsparingly great, extreme, or excessive, as amounts: to talk for an unmerciful length of time.

Origin of unmerciful

First recorded in 1475–85; un-¹ + merciful

un·mer·ci·ful·ly, adverb un·mer·ci·ful·ness, noun

They were apt to slip away from him in this case and sting him unmercifully with bullets.

The Strength of the Pines |Edison Marshall
They probably will guy us unmercifully, too, about yesterday.

Bert Wilson at the Wheel |J. W. Duffield
He teased Red unmercifully and it was one time when Red was flustered.

Ted Marsh on an Important Mission |Elmer Sherwood
I snubbed him unmercifully, but he was one of those self-satisfied, self-assured creatures incapable of taking a snubbing.

A Book of Ghosts |Sabine Baring-Gould

The papers the next day were fairly enthusiastic, with one exception, and that one criticized us unmercifully.

Nat Goodwin's Book |Nat C. Goodwin

unmerciful

/ (ʌnˈmɜːsɪfʊl) /

showing no mercy; relentless

extreme or excessive

unmercifully, adverb unmercifulness, noun