The term "ungainly" refers to something or someone who lacks elegance, or appears awkward and clumsy. Antonyms, on the other hand, indicate words that have opposite meanings. Therefore, antonyms for "ungainly" are words that denote gracefulness, beauty, and agility. Some of the words that can be used as antonyms for "ungainly" include graceful, elegant, dexterous, agile, nimble, lithe, supple, and deft. These words describe movements, actions, or physical appearances that reveal poise, finesse, and fluidity. So, when seeking to express the opposite of "ungainly," you can explore these antonyms to convey a sense of aesthetics, grace, and refinement.