Synonyms: fiend, devil, demon, daemon, daimon
Definition: an evil supernatural being
Similar words: evil spirit
Definition: a spirit tending to cause harm
Definition: a person motivated by irrational enthusiasm (as for a cause)
Usage: A fanatic is one who can't change his mind and won't change the subject--Winston Churchill
Similar words: partisan, partizan, enthusiast
Definition: an ardent and enthusiastic supporter of some person or activity
Synonyms: monster, ogre, devil, demon, fiend
Definition: a cruel wicked and inhuman person
Similar words: unpleasant person, disagreeable person
Definition: a person who is not pleasant or agreeable