D defs.my
Entry 1 sense Webster, 1913

Relentless

· Re·lent·less · IPA /ɹɪˈlɛntləs/
01 a. Unmoved by appeals for sympathy or forgiveness; insensible to the distresses of others; destitute of tenderness; unrelenting; unyielding; u…
  1. 1.
    Unmoved by appeals for sympathy or forgiveness; insensible to the distresses of others; destitute of tenderness; unrelenting; unyielding; unpitying; as, a prey to relentless despotism.
    “For this the avenging power employs his darts, . . . Thus will persist, relentless in his ire.” Dryden.