Sinkages refer to the sinking of objects or surfaces. Antonyms for sinkages, therefore, would be words that convey the idea of raising or levitating. Some possible antonyms for sinkages include buoyancy, uplift, elevation, levitation, ascension, or uprising. These words describe the opposite of sinking or descending, instead, they relate to objects rising or moving upward. In essence, antonyms for sinkages relate to things that are floating, light or that which has been lifted. By using antonyms for sinkages in writing, it is possible to create a contrast and convey different meanings to the reader.