1
[ noun ] a person motivated by irrational enthusiasm (as for a cause)

Synonyms

fiend

Examples

"A fanatic is one who can't change his mind and won't change the subject"--Winston Churchill

Used in print

(John Michael Ray, "Rhode Island's Reactions...)

On November 22 , 1859 , the Providence_Daily_Journal stated that although Brown 's `` pluck '' and honest fanaticism must be admired , any honor paid to Brown would only induce other fanatics to imitate his actions .

Related terms

enthusiast

2
[ adjective ] marked by excessive enthusiasm for and intense devotion to a cause or idea

Examples

"rabid isolationist"

Related terms

passionate

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