Being antsy is a feeling of restlessness, impatience, and nervousness. The opposite of being antsy would be feeling calm, patient, and relaxed. Synonyms of calm include collected, composed, and serene. Meanwhile, words that are similar to patient include unfazed, tolerant, and enduring. Finally, chill or easygoing are often used to describe someone who is relaxed. Antonyms can be helpful in describing the opposite of a particular feeling or emotion. By identifying antonyms, we can better understand the meaning of a word and how it relates to our own experiences.