Contact still visible in Whatsapp after deleting out of my contactlist from my phone I deleted a contact/number out of my contact list from my smart phone. But if I open WhatsApp I can still see that same contact/person that I deleted earlier. How is this possible?
According to WhatsApp's FAQ, you may need to refresh the list.  You also will still see the deleted contact if there are past chats you've had with that contact.


  How do I delete a contact?
  
  The contacts that you see in WhatsApp come from your address book.
  There is no way to directly edit the Select contact screen.
  
  To delete a contact from the WhatsApp contact list, you will need to
  delete the contact from your phone's address book.
  
  In order to find the WhatsApp contact in your phone's address book:
  
  
  Find the contact in the Select contact page.
  Tap on the contact.
  Then tap on the name at the top.
  On the Contact info page, go to [Menu button] > [View in address book].
  From there you can find the option to delete the contact from your address book.  
  
  
  Then, refresh your WhatsApp contact list by opening WhatsApp >
  [Compose button] > [Menu button] > [Refresh]
  
  If you still see the contact, it is likely that you are seeing the
  conversation on your Chats screen. Simply tap and hold on the contact
  and then select [Delete chat] to delete a chat.