die-hard

he's a die-hard fan of the lakers, attending every home game.

despite the evidence, she remained a die-hard believer in his innocence.

they are die-hard supporters of the environmental protection movement.

he's a die-hard republican, rarely changing his political views.

she's a die-hard reader, always carrying a book with her.

the team faced a die-hard opponent in the championship game.

he's a die-hard gamer, spending hours online each day.

even after all these years, she's a die-hard romantic at heart.

they are die-hard advocates for animal rights and welfare.

he's a die-hard traditionalist, resisting any modern changes.

she's a die-hard optimist, always seeing the good in every situation.