Ungainly means clumsy, uncoordinated, awkward or graceless. Its antonyms on the other hand are the complete opposite, describing how someone or something is graceful, elegant, dexterous, coordinated or agile. These antonyms describe a fluidity of movement, coordination and poise. They reflect a sense of ease and confidence in one's motions that un-gainly lacks. Some examples of antonyms for un-gainly are sleek, nimble, supple, lithe, smooth and fluid. These words indicate a sense of effortlessness and control, highlighting the beauty in movement and motion. So when looking for words to describe somebody's gracefulness, it is useful to remember the antonyms of un-gainly.