Galumphs means to move in a clumsy, heavy, or awkward manner. Antonyms for galumphs include graceful, light-footed, nimble, agile, and spry. Graceful movements are characterized by elegance and poise, while light-footed describes someone who moves quickly and lightly on their feet. Nimble suggests agility and quickness in movement, while agile implies flexibility and dexterity. Lastly, spry implies liveliness and energy in movement. All these antonyms for galumphs describe movements that are the opposite of clumsy, heavy, or awkward, and are associated with grace, speed, and agility.