The word "gaudinesses" refers to something that is showy, over-the-top and flashy. The antonyms for gaudinesses are simplicity, elegance, and subtlety. Simplicity refers to something that is straightforward, uncomplicated, and plain, which is the opposite of something gaudy. Elegance refers to something that is tasteful, graceful, and refined, which is the antonym for anything that is ostentatious. Finally, subtlety refers to something that is delicate, understated, and not excessively loud, which is the opposite of anything that is garish. So, while gaudinesses may be attractive to some people, for others, simplicity, elegance, and subtlety are the epitome of beauty.