dyed in the wool
1
firmly and uncompromisingly committed to a belief, habit, or way of thinking
- He's a dyed-in-the-wool conservative who never wavers in his views.
- Don't expect him to change his mind; he's dyed in the wool when it comes to tradition.
- The town is dyed-in-the-wool football country — everything shuts down on game day.
- As a dyed-in-the-wool perfectionist, he rechecked every detail three times.
- She's a dyed-in-the-wool romantic, always believing in true love.