Fanatic definition

fə-nătĭk
Frequency:
A person marked or motivated by an extreme, unreasoning enthusiasm, as for a cause.
noun
6
2
Fanatical.
adjective
3
1
A person whose extreme zeal, piety, etc. goes beyond what is reasonable; zealot.
noun
2
1
adjective
2
2
The definition of a fanatic is a person who is overly excited and interested in something.

An example of fanatic is someone with a room devoted to Elvis Presley in their two-bedroom house.

noun
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adjective
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A person who is zealously enthusiastic for some cause, especially in religion.
noun
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Other Word Forms

Noun

Singular:
fanatic
Plural:
fanatics

Origin of fanatic

  • Latin fānāticus inspired by orgiastic rites, pertaining to a temple from fānum temple dhēs- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • First attested in 1525. From Latin fānāticus (“of a temple, divinely inspired, frenzied”), from fānum (“temple”). Influenced by French fanatique.

    From Wiktionary