partisan, zealotry, zealotist, zealant, superzealot, zeal, zealotism, zelant, fanatic, antizealot, more...

apathetic, indifferent

fanatic, extremist, hard-liner, true believer, more...

religious, young, fiery, political, protestant, true, christian, furious, single, fanatical, puritan

a fanatic,   strong believer,   religious fanatic,   firm believer,   religious devotee,   over enthusiast,   religious nut,   words with z,   dogmatic person,   devout worshiper