Word parts un- + bold Pronunciation IPA (key): /ʌnˈdɛd/ Audio (UK)(file) Adjective Positive undead Comparative none Superlative none If someone is undead they are not dead or alive, or they are both dead and alive. Ghosts, zombies, and vampires are undead. Someone (or something) that is undead. We watched a movie about the undead. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads