The phrase "gotten nerves" implies someone is becoming agitated or anxious. Antonyms for this phrase include words that convey a sense of calmness and relaxation. For instance, "calm nerves," "relaxed nerves," or "cool nerves" are all opposite phrases that express a sense of peace and tranquility. Whereas, "jittery nerves," "anxious nerves," or "tense nerves" are all synonyms to the original phrase "gotten nerves" and show a feeling of uneasiness or apprehension. By using antonyms like "calm nerves," one can suggest a state of calm and composure that can help in reducing anxiety and stress.