* Adjective: Describing something related to the Impressionist movement in art.
* Example: "The museum has a stunning collection of Impressionist paintings."
* Noun: A person who paints in the Impressionist style.
* Example: "Claude Monet was a famous Impressionist."
* Noun: A person who imitates others, especially actors or singers.
* Example: "She's a great impressionist, she can do all the famous singers perfectly."
So, the answer depends on the specific sentence you're looking at.