The word "nettled" refers to feeling irritated, agitated, or angry. Therefore, it can have several antonyms depending on the context in which it is used. One antonym for "more nettled" could be "calm," which refers to a state of tranquility and being free from disturbance or agitation. Another antonym could be "pleased," which suggests the absence of irritation or annoyance. Similarly, the word "happy" can also serve as an antonym, indicating a feeling of contentment and satisfaction, rather than frustration or anger. Other possible antonyms could include "content," "relaxed," "unbothered," "composed," and "unruffled.