In my opinion, "too tight" means
uncomfortable. Now, I say that with a caveat, as I do wear some tight-fitting body-shaping garments such as control panties, "girdles", and corsets. That I do to create a more feminine and a thinner shape. It doesn't always feel good, though. Anything that severely restricts my breathing or affects my digestion (if I'm planning to eat) would not work for me. But of course, like some of you I wish I had the body to wear tight-fitting clothing. I have a pair of jeans that fits somewhat tightly. But my preference is for loose, flowing clothing, whether it be blouses or dresses or skirts. Pants should be comfortable. Shoes can be too narrow even if the size appears right: that's why I always look for women's wide or extra-wide styles.
