From Longman Dictionary of Contemporary Englishzombiezom‧bie /ˈzɒmbi $ ˈzɑːm-/ noun [countable] 1 informalSLOW someone who moves very slowly and does not seem to be thinking about what they are doing, especially because they are very tired I walked around like a zombie for most of the day.2 ROMRRa dead person whose body is made to move by magic, according to some African and Caribbean religions3 (also zombie machine/computer) a computer that someone has secretly gained control of and uses to do things such as send spam (=unwanted emails sent to a large number of people)
Examples from the Corpus
zombie• The old man disappeared out the door, a zombie come and gone.• One turns into a zombie in such circumstances.• I got into the van and drove home like a zombie.• You're like a zombie, to tell the truth.• Vologsky was like a zombie, existing on the outermost fringe of sentient life.• Only a zombie would risk a child's health by refusing to bend a rule.• I put up the antenna the zombie watched me from behind his clutter of uncovered food.• Or were they zombie bodies, specially bred and conditioned, and thus essentially unhuman?Origin zombie (1800-1900) Kimbundu nzumbi “spirit of a dead person” 