In H.G. Wells' "The Invisible Man," the protagonist's voice is depicted as unmistakable, suggesting a strong character presence even in invisibility. This description implies that despite his invisible state, the man possesses a persuasive and sophisticated manner of speech, which stands out remarkably.
The phrase underscores the dichotomy of his character; although he engages in swearing, it is done with an eloquence that signifies education and refinement. This contrast between vulgarity and cultivation adds depth to his persona, showcasing the complexity of a figure who is both unseen and articulate.