Sentence:  He lived in the world, as the last of the Grisly Bears lived in settled Missouri. And as when Spring and Summer had departed, that wild Logan of the woods, burying himself in the hollow of a tree, lived out the winter there, sucking his own paws; so, in his <WSD>inclement</WSD>, howling old age, Ahab's soul, shut up in the caved trunk of his body, there fed upon the sullen paws of its gloom! 
Meaning of the word marked with <WSD> tags:  Merciless, unrelenting.