It is common in informal speech and writing but is neither rare nor wrong in serious discourse.. See examples of pretty used in a sentence.
![Pretty Dead Queens by Alexa Donne [book review] Owl Book](https://i0.wp.com/www.owlbookworld.com/wp-content/uploads/2023/07/Pretty-Dead-Queens-2.jpg?w=1000&ssl=1 "Pretty Dead Queens by Alexa Donne [book review] Owl Book world")
We can use pretty as an adverb, before an adjective or another adverb, meaning ‘quite, but not extremely’.. Use the word pretty to describe something with a delicate and pleasant appearance.