The idiom "dyed-in-the-wool" is used to describe someone who has a deep and unwavering commitment to a particular belief, ideology, or way of life. It refers to a person who is completely and permanently committed to a particular cause or belief, and cannot be swayed or changed.
The phrase comes from the process of dyeing wool, where the dye is absorbed into the fibers of the wool, making it impossible to remove. In the same way, a person who is "dyed-in-the-wool" has a belief or attitude that is deeply ingrained and cannot be changed.
For example, you might say that someone is a "dyed-in-the-wool" environmentalist if they have been committed to environmental causes for their entire life, and cannot be convinced to change their beliefs. Similarly, you might describe someone as a "dyed-in-the-wool" conservative if they have always been a staunch supporter of conservative political views.
Overall, the idiom "dyed-in-the-wool" is used to describe someone who is deeply committed to a particular belief or way of life, and cannot be swayed or changed.
• Mary is a dyed-in-the-wool Democrat and will always vote for the blue party, no matter what. (elementary)
• Mark is a dyed-in-the-wool football fan and never misses a game. (intermediate)
• My grandfather is a dyed-in-the-wool conservative who never changes his mind. (beginner)
• My boss is a dyed-in-the-wool perfectionist who always expects the best from us. (advanced)
• The writer was a dyed-in-the-wool romantic who infused every sentence with passion and emotion. (proficient)
• Despite being a dyed-in-the-wool carnivore, John decided to try a plant-based diet for a month. (upper-intermediate)