While he does exhibit some characteristics that could be interpreted as unusual or disturbing, these traits are primarily fueled by his desire for revenge, rather than inherent eccentricity or physical appearance.
Here's a breakdown:
Vengeful: Montresor is driven by a deep-seated thirst for retribution against Fortunato, whom he believes has wronged him. This intense focus on revenge fuels his actions and makes him appear relentless and even cruel.
Calculating: He meticulously plans his revenge, considering every detail, including the time of year, the conditions of the catacombs, and the best way to lure Fortunato into the trap. This methodical approach hints at a manipulative and scheming nature.
Ruthless: Montresor shows no remorse or hesitation in carrying out his plan, even when Fortunato shows signs of weakness and pleads for mercy. His single-minded pursuit of vengeance reveals a cold and heartless personality.
Unreliable Narrator: As the story is told from Montresor's perspective, we only get his version of events. His narration is colored by his own biases and motivations, making him an unreliable source. This unreliable narration adds a layer of complexity to the character, leaving the reader to question the true nature of his actions and motivations.
While Montresor's character is undeniably unsettling, he is not explicitly described as "wild," "irregular," or "grotesque" in the story. These characteristics are more often associated with other literary figures with more overt physical or behavioral oddities. Instead, Montresor's character is defined by his dark, calculating, and vengeful nature, making him a compelling but ultimately disturbing protagonist.