Given the use of physiognomy in literature, what is Hawthorne suggesting by Chillingworth's aged, deformed appearance?
Chillingworth's decrepit appearance points to his malignant nature. He spends the entire novel first hunting for Hester's lover and then secretly working to increase Dimmsdale's agony. Rather than admit to being Hester's husband, denouncing her, and seeking justice that is his right, he chooses to pretend to be a concerned and trustworthy physician to Dimmsdale in order to watch him squirm. His ugly outside matches his vengeful nature and marks him as a villain of the book.
^This guy. Grow up!
Trolololololol Derp. Da cow go quack.