Un-abating refers to something that continues without decrease or respite. Its direct antonym is abating, which means to decrease or subside. Other antonyms for un-abating are diminishing, reducing, waning, and declining. These words can be used interchangeably, depending on the context in which they are being used. For instance, the intensity of a storm could be said to be un-abating, but as it begins to subside, its intensity is said to be abating. Similarly, a fever could be said to be un-abating if it persists for an extended period without relief, but as symptoms begin to decrease, it is said to be diminishing or reducing. Antonyms are essential vocabulary tools as they help in improving one's writing and communication skills.