The phrase "got nerves" implies feelings of anxiety, tension, or unease. Antonyms for this phrase include "calm," "relaxed," "composed," "serene," and "tranquil." Similarly, words like "peaceful," "unperturbed," "unflappable," and "collected" can also serve as antonyms. These words describe a state of mind that is opposite to feeling nervous or anxious. When we are in a state of calmness or tranquility, we are at ease and not easily disturbed by external or internal factors. Thus, it is important to cultivate a peaceful mindset by practicing mindfulness, deep breathing, and other relaxation techniques to counteract the effects of nervousness or anxiety.