| a. | 1. | Pertaining to, or indicating, fanaticism; extravagant in opinions; ultra; unreasonable; excessively enthusiastic, especially on religious subjects; |
| n. | 1. | A person affected by excessive enthusiasm, particularly on religious subjects; one who indulges wild and extravagant notions of religion. |
| Noun | 1. | fanatic - 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 Synonyms: fiend |
| Adj. | 1. | fanatic - marked by excessive enthusiasm for and intense devotion to a cause or idea; "rabid isolationist" |