The phrase "more racket" refers to a noisy, disturbing sound that can be very irritating. However, there are several antonyms that can be used to describe a quiet, peaceful environment. Some common antonyms of "more racket" include silence, calm, tranquility, peace, and serenity. These words describe a situation where there is little to no noise, making it a soothing and comfortable atmosphere. When you want to convey the idea of a quiet and peaceful environment, it is best to use these antonyms in place of "more racket" as they will better capture the meaning you wish to convey.