Block, which prevents them seeing your tweets.
Mute, which stops you seeing their tweets and replies to you.
And Soft block which forces them to unfollow you.
If you are active Twitter user you are most likely familiar to Block and Mute. But you might or might not have heard about Soft block. Because It’s not an official feature, soft block is not commonly known.
The procedure is quite simple, all you have to do is promptly block and unblock the user in question.
If the person doesn’t notice you’re not coming up in their feed anymore, you’re good. Else repeat.
--Cheers