Fanatic :: Fanatic (a.) Pertaining to, or indicating, fanaticism; extravagant in opinions; ultra; unreasonable; excessively enthusiastic, especially on religious subjects; as, fanatic zeal; fanatic notions..
Fanatic :: Fanatic (n.) A person affected by excessive enthusiasm, particularly on religious subjects; one who indulges wild and extravagant notions of religion..
Fanatical :: Fanatical (a.) Characteristic of, or relating to, fanaticism; fanatic..
Fanaticism :: Fanaticism (n.) Excessive enthusiasm, unreasoning zeal, or wild and extravagant notions, on any subject, especially religion; religious frenzy..
Fanaticize :: Fanaticize (v. t.) To cause to become a fanatic.