How to delete multiple contacts from phone, not from outlook

[T850]

I reset my phone to break my bonds with google
I have created an outlook account
phone is synced to my outlook account only (not tethered to Google anymore)
Imported my gmail contacts via CSV file
contacts are on the phone and in outlook.com
However, I have a bunch of my saved email contacts from google that have no phone numbers - a lot! is there a way to do a batch delete or a way to delete multiple contacts at a time, FROM my phone and not from outlook??

Thanks!