Which term best describes the action of feeling irritated?

The term that best describes the action of feeling irritated is "annoyed." Being annoyed refers specifically to a mild form of irritation or discomfort, often resulting from someone's behavior, a situation, or an ongoing annoyance. When someone is annoyed, they experience a kind of irritation that can lead to frustration but is generally less severe than distress.

"Pique," on the other hand, refers to a feeling of irritation or resentment resulting from a slight, often for feelings of hurt pride but does not directly equate to the general sense of irritation. "Calm" is directly opposite of feeling irritated, suggesting a state of tranquility and lack of agitation. Finally, "distressed" implies a much more intense and serious sense of anguish or suffering that goes beyond mere irritation.

Therefore, "annoyed" is the most accurate term in this context to describe the feeling of irritation.