Final answer:
Roderick Usher's appearance is wild and ungroomed, characterized by a cadaverous complexion, luminous eyes, and wild, untended hair, reflecting the decay of his surroundings.
Step-by-step explanation:
The appearance of Roderick Usher is described vividly in Edgar Allan Poe's "The Fall of the House of Usher." Usher's description includes a cadaverous complexion, luminous eyes, thin and pallid lips, and hair of softness and tenuity. His face reflects the mansion's gloomy character, showcasing old strength now lost and a lack of moral energy.
Importantly, the wild and unheeded growth of his gossamer-like hair parallels the neglected and eerie exterior of his ancestral home, emphasizing a sense of decay and neglect. Hence, Roderick Usher's appearance can be best described as wild and ungroomed, aligning with the gothic elements prevalent throughout the narrative.