entusiasta

noun
  1. A person who is highly interested in a particular activity or subject and shows great excitement and eagerness towards it. noun
    She is an entusiasta of classical music, attending every concert she can.
    As a technology entusiasta, he always has the latest gadgets.
  2. Showing intense and eager enjoyment, interest, or approval. adjective
    The entusiasta crowd cheered loudly as the band took the stage.
    Her entusiasta response to the proposal was encouraging.