However, you can use "uniformed" as an adjective to describe something or someone wearing a uniform.
Here are some examples:
* Uniformed officers
* A uniformed employee
* A uniformed school group
You could also use "uniformity" to describe the state of being uniform, which means having the same form, appearance, or quality.
For example:
* The uniformity of the soldiers' outfits
* The uniformity of the factory products