Without pity; unfeeling
Not relenting; harsh; pitiless
Fierce; cruel; savage
Disagreeable to one of the senses, as:
Devoid of compassion or feeling; pitiless.
Not placable; that cannot be appeased or pacified; relentless; inexorable
That cannot be moved or influenced by persuasion or entreaty; unrelenting
(Slang) Hard to cope with; difficult or troublesome:
Without civilization; primitive; barbarous
Exceeding a normal or reasonable limit; excessive:
Incapable of being changed; unalterable:
Lascivious or promiscuous. Used especially of women.
Full of mercy; compassionate:
1822, T. Creevey, Reminiscences, 28 Jul:
Relating to or being vibrations, especially musical tones, produced in one body by energy from a nearby vibrating body and having the same frequency as the vibration of the nearby body.
Find another word for merciless. In this page you can discover 32 synonyms, antonyms, idiomatic expressions, and related words for merciless, like: pitiless, relentless, cruel, fierce, ruthless, ferocious, grim, hard-hearted, harsh, heartless and implacable.