uniformed
Uniformed (adjective) means wearing a uniform, especially as part of one's job. Example: “Uniformed officers were stationed at every entrance.”
How to use uniformed
Learner’s notesIn plain EnglishDescribes a person who is currently dressed in their official uniform, such as a police officer or security guard.
Don't confuse with "uninformed" (lacking information) — the two words look alike but mean completely different things.
Fill the gap
Can you complete this real example?
_____ officers were stationed at every entrance.
Etymology
From uniform + -ed.