stalwart

US /ˈstɑːl.wɚt/
UK /ˈstɑːl.wɚt/
"stalwart" picture
1.

loyal, reliable, and hardworking

:
He was a stalwart supporter of the team through thick and thin.
The company relies on its stalwart employees.
1.

a loyal, reliable, and hardworking supporter or participant in an organization or team

:
He has been a stalwart of the community for decades.
The veteran player was a true stalwart for the team.