Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fanatic

1 sense of fanatic

Sense 1
fanatic, fiend -- (a person motivated by irrational enthusiasm (as for a cause); "A fanatic is one who can't change his mind and won't change the subject"--Winston Churchill)
       => enthusiast, partisan, partizan -- (an ardent and enthusiastic supporter of some person or activity)

Antonyms of adj fanatic

1 sense of fanatic

Sense 1
fanatic, fanatical, overzealous, rabid -- (marked by excessive enthusiasm for and intense devotion to a cause or idea; "rabid isolationist")

INDIRECT (VIA passionate) -> passionless -- (not passionate; "passionless observation of human nature")

Similarity of adj fanatic

1 sense of fanatic

Sense 1
fanatic, fanatical, overzealous, rabid -- (marked by excessive enthusiasm for and intense devotion to a cause or idea; "rabid isolationist")
       => passionate (vs. passionless) -- (having or expressing strong emotions)