The common phrase "on pins and needles" has a few antonyms that express comfort and ease. Some of the antonyms for this phrase include relaxed, calm, at ease, comfortable, and composed. These words denote a state of being free from anxiety, tension, or worry. For example, someone who is relaxed is at peace with themselves and their surroundings. They feel no pressure or strain. Similarly, someone who is calm is not easily agitated or troubled. They have a sense of tranquility and peace. These antonyms represent a state of mind that is desirable for everyone to experience frequently.