Antonyms for the phrase "am on pins and needles" include "calm," "relaxed," "serene," "composed," and "tranquil." These words denote a state of peace, comfort, and ease. When someone is calm, they are not anxious or nervous. When someone is relaxed, they are at ease and feel no tension or stress. When someone is serene, they feel a sense of tranquility and inner peace. To be composed is to be in control of oneself, and not easily disturbed or upset. Being tranquil means to be free from disturbance, agitation or turmoil. The antonyms of "am on pins and needles," help to describe an opposite feeling to that of anxiety, uncertainty or anticipation.