资料来源 : pyDict

无慈悲心的,残忍的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Merciless \Mer"ci*less\, a.
   Destitute of mercy; cruel; unsparing; -- said of animate
   beings, and also, figuratively, of things; as, a merciless
   tyrant; merciless waves.

         The foe is merciless, and will not pity. --Shak.

   Syn: Cruel; unmerciful; remorseless; ruthless; pitiless;
        barbarous; savage. -- {Mer"ci*less*ly}, adv. --
        {Mer"ci*less*ness}, n.

资料来源 : WordNet®

merciless
     adj : having or showing no mercy; "the merciless enemy"; "a
           merciless critic"; "gave him a merciless beating" [syn:
            {unmerciful}] [ant: {merciful}]