How to prevent Google from indexing WordPress RSS feeds?

Hello. I’ve noticed that Googlebot is crawling and indexing the WordPress feed feature that I don’t even use.

So, I want to disable addresses like example.com/test/feed/ which are generated for every post.

I know how to prevent indexing by adding the following code to Robots.txt, but if I do this, the already indexed /feed/ will remain as they are.


User-agent: *
Disallow: /feed/


Is there a way to set only ~/feed/ addresses as noindex? If there is, please let me know!

Thanks!