Short Answer 
The term “accentuated” highlights how white edging on a dress enhances the vibrancy of a woman’s tan, making it more prominent. “Petulance” reflects the woman’s irritability and emotional discomfort, indicating her mood through her speech. “Mundane” refers to feelings that may seem ordinary or unremarkable, showcasing a desire for more profound emotional expression.
Step 1: Understanding “Accentuated”
The term accentuated refers to making something more noticeable or prominent. In the context of the dress described, the white edging enhances the woman’s tan. This means that the tan appears more vibrant and distinct because of the contrasting color of the dress. A reader can visualize how the edging frames her skin tone, drawing attention to it.
Step 2: Grasping “Petulance”
Petulance describes a state of being irritable or sulky, often due to a sense of sadness. In the given excerpt, the woman is said to be uttering petulance, implying that her words reflect her bad mood. This conveys a sense of emotional discomfort where her speech aligns with her feelings, allowing readers to understand her emotional state effectively.
Step 3: Recognizing “Mundane”
The word mundane suggests something that is practical, ordinary, or lacking excitement. In the context of the man’s worry, he feels that his feelings might come across as ordinary or unremarkable. This self-reflection highlights a common concern of wanting to express more meaningful emotions, while also acknowledging that some feelings can simply be average or routine.