Synonyms for the word "supplest" encompass flexibility, pliancy, and adaptability. Akin to the word supple, supplest denotes something that is highly flexible, easily bending or adjusting. Its synonyms include limber, malleable, and elastic. Supplest also suggests nimbleness and dexterity, emphasizing the ability to move gracefully and effortlessly. Synonymous words such as agile, lithe, and nimble further highlight prowess in physical movement. Additionally, supplest can connote fluidity and smoothness, making terms like flowing, lissome, and fluent good alternatives. Overall, the synonyms for supplest capture qualities of flexibility, adaptability, gracefulness, and smoothness.