Natant is an adjective that describes something that swims or floats in water. It can also be used to describe something that is in motion or is mobile. Synonyms for natant include swimming, floating, gliding, drifting, buoyant, and wafting. Other similar words that can be used in place of natant are aquatic, marine, submerged, and aqueous. These words can be used in various contexts, such as describing sea creatures, water sports, or even describing the motion of air currents. Using synonyms for natant can help to diversify your language, making your writing more interesting and engaging.