If you want to delete multiple contacts, you may be able to press and hold the first contact until the selection mode activates, then tap each additional contact you want to select. This functionality varies depending on your device.

This will only work for contacts stored in your Google account. Contacts stored on your phone or from another account will need to be deleted separately.

If the trashcan is grayed out, one or more of your selected contacts were added through Google+. You’ll need to remove them from your Google+ circles to delete them. See Create Circles in Google+ for details.