Somebody please tell me how to undo an existing friend in a facebook.?

[v]

A friend request once accepted but now no more desirable. How to stop his notifications and appearances?

[Gem]

go onto the persons profile

on the right side under the cover photo where it says friends mouse over it
a drop down box will appear

at the bottom of the list it should say 'unfriend' left click on this the click okay in the box that apperas

you have deleted the person

[?]

EDIT YOUR PRIVACY SETTINGS
Your privacy settimg page has a group of general controls for your friend requests and messages
Get the information you need to control your sharing on facebook as follow,
if you are using a smart phone
1. Tap photo at the top left of any page
2. Scroll to the bottom of the menu
3. Tap account > privacy
if you are using other phones
1. Click settings at the bottom of every page
2. Find the privacy section

[Imran Sahar]

Go to your friend profile and then unsubscribed from your friend or unfriend to your friend.

[Ess Baby]

"Unfriend"

[Mohammed]

go to that persons account...then on the friends word,the same place where send friend request is written.....click on it or just take the mouse pointer on it and u will see different types of options,u can unfriend him/her there,and u can also unsubscribe them there......hope it helps