- merciless; relentless; severe; cruel; pitiless.
- unsparingly great, extreme, or excessive, as amounts: to talk for an unmerciful length of time.
Origin of unmerciful
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unmercifully
It was received with great applause, and I was unmercifully chaffed.Brighter Britain! (Volume 1 of 2)
William Delisle Hay
They were swarming all over us, and how unmercifully they did guy us!War from the Inside
Frederick L. (Frederick Lyman) Hitchcock
His whole weight hangs in them—they'll cut him unmercifully.Disowned
It was no easy task, the full pails tugging most unmercifully at his arms.Paul Prescott's Charge
You are just the kind of a man that women fool most unmercifully.The Love Affairs of an Old Maid
- showing no mercy; relentless
- extreme or excessive
Word Origin and History for unmercifully
Online Etymology Dictionary, © 2010 Douglas Harper