Begeistertes
Begeistertes is a German term tied to the adjective begeistert and used as a nominal form to denote enthusiasm. It can describe a person who is enthusiastic or a group marked by high energy. In standard usage, the more common nominal forms are die Begeisterten (the enthusiasts) or the neuter das Begeisterte when referring to a phenomenon or state in a more abstract sense.
In everyday speech, the phrase das begeisterte Publikum is typical: a begeistertes audience is the audience
It can convey positive momentum and contagious energy, but may be less precise than explicit phrases like