Most thundering is an adjective used to describe something that is loud, powerful, and booming. The antonyms for most thundering are words that describe things that are soft, quiet, or muted. Some possible antonyms for most thundering include whispering, murmuring, hushed, gentle, soothing, and calm. These words evoke images of peaceful scenes, where sounds are light and subdued, and the environment is tranquil. Antonyms for most thundering can also include words that describe things that are weak or feeble, such as faint, powerless, frail, or feeble-minded. Using antonyms in your writing can help you create a more nuanced picture and add depth to your descriptions.