Antonyms for the word "more outsize" include smaller, tiny, petite, little, puny, miniature, slender, slim, and delicate. These words describe things that are of a smaller size and more delicate proportions, rather than those that are oversized or excessively large. They are used to contrast with the concept of "more outsize" and convey a sense of elegance or refinement, as well as a more subtle and understated aesthetic. Whether applied to fashion, architecture, or any other domain, these antonyms for "more outsize" can help create a sense of balance and harmony, emphasizing the beauty of smaller things in life.