Antonyms for the word "more swirling" include "still," "calm," "steady," "motionless," and "quiet." These words denote a lack of movement or agitation, and paint a picture of a serene and peaceful atmosphere. While "more swirling" can imply a sense of energy and excitement, these antonyms suggest the opposite - an absence of activity and a sense of relaxation. Use of these antonyms can convey a different mood or tone, and can be effective in creating imagery that is calm and tranquil. By choosing the appropriate antonym, writers can create a distinct image or emotion that suits their message or narrative.