The antonyms for "more out of fashion" are "in style," "trendy," "popular," "modern," and "contemporary." These words are used to describe something that is currently in fashion or vogue. In contrast, "more out of fashion" refers to things that are outdated or old-fashioned. Trends and styles are constantly changing in the fashion industry, and what was once popular may become outdated over time. To stay in trend, people often follow fashion magazines or watch fashion shows to keep up with the latest styles. However, it's important to remember that fashion is subjective, and what one person may consider outdated, another may find timeless.