More rackety means making more noise or being more disturbing. The antonyms of this phrase are calm, peaceful, and tranquil. When a place or a situation is calm, it is quiet and serene. The environment is conducive to relaxation, and people can think clearly without any distractions. The antonym of rackety is also placid, meaning untroubled, gentle, and mild. A placid setting is a perfect place to unwind and re-energize. Finally, the last antonym for more rackety is composed. Being composed means being calm and collected on the outside, even when there may be turmoil on the inside. Composed people are often seen as poised, disciplined, and resilient.