This is the 13606th most frequent Russian word.
недорогие
Inexpensive.
The word "недорогие" is used as an adjective in plural form to describe the cost attribute of "книги" (books), indicating they are affordable.
Я нашёл недорогие книги в этом магазине.
I found inexpensive books in this store.
Here, "недорогие" modifies "блюда" (dishes), emphasizing their reasonable price.
На ужин в кафе мы заказали недорогие блюда.
For dinner at a café, we ordered inexpensive dishes.
The word "недорогие" refers to "квартиры" (apartments), describing them as costing less than usual or expected.