The term "most noncandescent" describes something that is not glowing or emitting light in a significant way. Its antonyms, therefore, are words that describe something that is bright or emitting light. Some antonyms for "most noncandescent" include luminous, radiant, glowing, shining, incandescent, brilliant, and blazing. These terms describe things that emit light and brightness in varying degrees, from a soft glow to a brilliant shine. These antonyms are commonly used in describing objects such as stars, light bulbs, flames, fireworks, and other sources of illumination. By using the appropriate antonym, a writer can clearly convey the brightness and luminosity of an object.