full beard

A full beard consists of hair on the chin, the cheeks, and the sideburns, without any natural or shaven gap.

In real life a full beard also includes a mustache, but that's not true for a lot of bearded anime characters.

If the character has a mustache, you can tag it as:

• mustache stubble
• thick mustache
• long mustache

A full beard can also be a thick beard, or thin beard stubble.
Visual comparison Danbooru post #6608064

This tag implicates beard (learn more).