The word "unwaning" means continuing without diminishing, but its antonyms refer to the opposite. Some antonyms for "unwaning" include waning, decreasing, dwindling, fading, and diminishing. These words describe the gradual reduction of something over time, whether it's the intensity of a feeling, the size of an object, or the strength of a force. When something is unwaning, it has a consistent and undiminished quality, but when it wanes or diminishes, its power and influence decrease over time. Knowing the antonyms for a word like "unwaning" can help you communicate the full range of possibilities and contrasts in your writing.