zealous
adjectiveUK /ˈzel.əs/
US /ˈzel.əs/
Showing a lot of excited energy for something you believe in.
The zealous fans cheered loudly for their team all night.
OTHER MEANINGS
2. Working very hard and with great energy to reach a goal.
She was a zealous worker who never gave up on a task.
3. Caring about something so much that you talk about it all the time.
He is zealous about keeping the park clean and picks up litter every day.
4. Full of strong, eager feelings that are hard to hide.
The zealous crowd waved flags and sang songs.