"Ungainly" means awkward, clumsy or ungainliest. To find antonyms or opposite words for the word un-gainliest, we must look for synonyms of "graceful," "elegant" or "coordinated." Some examples could be "graceful," "elegant," "poised," "refined," "agile," "nimble," "fluid," "seamless," or "harmonious." These words represent attributes of individuals or things that are light on their feet, graceful in motion, and aesthetically pleasing. We can use these opposite words to describe situations or people where there is a flowing grace and excellent coordination of body and movement, and the opposite of an ungainly, uncoordinated person or situation.