Muzziest, an adjective that describes something that is cloudy or hazy, can have many antonyms. Some of the antonyms for muzziest include clear, bright, sunny, lucid, transparent, and unclouded. Clear refers to something that is free from any obstructions or obstacles, while bright describes something that has a lot of light or color. Sunny, meanwhile, refers to the presence of sunlight, while lucid refers to something that is easy to understand. Transparent is used to describe something that is able to be seen through, while unclouded refers to something that is free from any confusion or uncertainty. These antonyms all convey a sense of clarity and understanding, something that is the opposite of muzziest.