Creakiest means making a harsh, high-pitched, and unpleasant noise. The opposite of creakiest is smooth or quietest. The smoothest thing is easy and gentle to move without any roughness, and it doesn't make any noise. In contrast, the quietest pertains to a low level of noise or no noise at all. Some antonyms of creakiest can be silent, noiseless, tranquil, peaceful, or calm. For instance, a well-oiled bicycle chain runs quietly, without any creaky sounds, while a peaceful sunset provides a tranquil and smooth setting. Using antonyms of creakiest words can help enrich your writing and make your content more varied and exciting.