I do in fact know why the word uniform carries the pejorative. IMO it’s not just it’s implocation of lack of creativity. We have seen a post on this forum of an article about woman who wore a uniform of the same very avante garde dress every single day. However, she had a tailor make multiple versions of this dress for her, so she had it in several colors, fabrics, and it therefore worked across seasons, etc. Maybe someone can find this article or post? She certainly had a uniform, and was creative, and I believe worked in the arts. However, to get back to my understanding of why uniform carries the pejorative. I bring up teenagers, especially those with sensory issues. Some of them will wear the same clothes every day. It’s a default uniform, but no one thinks of it as such. Their parents become distressed, their teachers often become worried, and their peers start to make negative comments. Their choice of uniform is not done in the same deliberate way as someone like Steve Jobs, or the woman described above, both of whom wore the same thing daily, but had a closet filled with the same items. These teens have only one version of their one outfit. I think this must be where the pejorative comes into play in our society where clothing has become so easy to obtain. Having variety, and wearing certain items confers status, and denotes class and rank. When someone dons a strict unchanging uniform, they remove our access to understand more about their place in society. That may be uncomfortable and even threatening to some people, thus revealing several layered reasons for the word uniform to be seen as pejorative.