Sentence examples for rookie mistake from inspiring English sources

"rookie mistake" is a correct and usable phrase in written English.
It is often used to describe a mistake or error made by someone who is inexperienced or new to a particular activity or job. You can use it in any situation where someone has made a mistake due to their lack of knowledge or experience. Example: Despite being a seasoned chef, Jane made a rookie mistake by burning the garlic in her signature pasta dish.