unundead

When an undead is fully and finally dispatched such that they cannot come back yet again.

Dude, you lifted the vampire's curse - she's unundead now.

by Seven Samurai Sith September 20, 2023

un-undead

A previously undead being or entity that has been "killed" and has had its animation removed.

Dude! Check out that un-undead zombie! I totally took its head off with my shotgun.

by Bunglewood June 30, 2008