You certainly have a right to cheer for your team but try not to become too _____ and unruly

Question

partisan?
You told me partisan was wrong but its my only word left

Answer 1

Although it could possibly be partisan, boisterous is much better.

Answer 2

I used boisterous for The crowd is so boisterous that the umpire is booed every time he makes a decision against the home team

Answer 3

OK. Maybe partisan is the best word for the team sentence.