unmerciful synonyms

unmerciful

modif.

merciless, pitiless, unpitying, vengeful, brutal, cruel, savage, bloodthirsty, tyrannous, monstrous, sanguine, inhumane, bestial, vindictive, ravening, cold-hearted, coldblooded, heartless, atrocious, dead to human feeling, stony-hearted.

Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.