What does ardor refer to?

Ardor refers to feelings of great warmth and intensity, often associated with passionate enthusiasm or fervor. The term is commonly used to describe a person's strong emotions or commitment towards an interest, cause, or relationship. When someone feels ardor for something, it implies they are deeply engaged and emotionally invested, showcasing a level of enthusiasm that goes beyond mere interest.

This concept contrasts sharply with the meanings of the other options. Indifference or apathy suggests a lack of feeling or concern, while anger and resentment are more associated with negative emotions. Feelings of sadness and regret convey a sense of sorrow or disappointment. In essence, ardor embodies a positive and dynamic emotional state that is characterized by zeal and passion, distinct from the more negative or neutral emotions represented by the other choices.