fanatical
Obsessively single-minded
Fanatical describes extreme, uncompromising devotion to a cause, belief, or pursuit.
The word implies intensity that goes beyond reasonable bounds—a fanatical supporter, fanatical attention to detail, fanatical dedication to fitness.
It can be admiring or critical depending on context: obsessive commitment viewed positively becomes fanatical zeal; viewed negatively, dangerous extremism.
Intensely emotional or enthusiastic
- intenseExtreme in degree
- fieryIntensely hot or passionate
- vehementIntensely forceful in feeling
- impassionedFilled with intense emotion
burning · fierce · heated · blazing · incandescent · feverish · inflamed · spirited
Wholly committed to something
- committedFirmly pledged or bound
- loyalFirm in allegiance
- devoutDeeply religious, sincere
- steadfastFirmly loyal, unshakeable
staunch · unwavering · faithful · ardent · fervent · passionate · wholehearted · zealous
One holding fringe views
- fundamentalistStrict original-doctrine adherent
- radicalRoot-indicating symbol
- absolutistOne allowing no exceptions
- hardlineStubbornly inflexible in stance
dogmatic · sectarian · bigoted · intransigent · militant · purist · diehard · hardcore
Gripped by fixation
- fixatedObsessively attached or focused
- monomaniacalFixated on one idea
- single-mindedDevoted to one purpose
- consumedFully used or eaten
compulsive · preoccupied · engrossed · absorbed · infatuated · possessed · driven · relentless
Obsessive cause supporter
- fundamentalistStrict original-doctrine adherent
- evangelistZealous advocate or preacher
- missionaryReligious outreach worker
- proselytizingSeeking converts zealously
pious · devout · crusader · jihadist · cult · sectarian · messianic · prophetic
passionate
Intensely emotional or enthusiastic
impassioned · burning · fierce · heated · blazing · incandescent · feverish · inflamed · spirited · earnest
dedicated
Wholly committed to something
steadfast · staunch · unwavering · faithful · ardent · fervent · passionate · wholehearted · zealous · enthusiastic
extremist
One holding fringe views
- fundamentalistStrict original-doctrine adherent
- radicalRoot-indicating symbol
- absolutistOne allowing no exceptions
hardline · dogmatic · sectarian · bigoted · intransigent · militant · purist · diehard · hardcore · uncompromising
obsessed
Gripped by fixation
- fixatedObsessively attached or focused
- monomaniacalFixated on one idea
- single-mindedDevoted to one purpose
consumed · compulsive · preoccupied · engrossed · absorbed · infatuated · possessed · driven · relentless · unrelenting
zealot
Obsessive cause supporter
- fundamentalistStrict original-doctrine adherent
- evangelistZealous advocate or preacher
- missionaryReligious outreach worker
proselytizing · pious · devout · crusader · jihadist · cult · sectarian · messianic · prophetic · apocalyptic
- intolerantbigoted, biased, prejudiced, discriminatory, intolerant
- religious stancesdevout, pious, faithful, atheist, agnostic
- hobbyist levelsbeginner, novice, intermediate, advanced, expert
- captivatedspellbound, entranced, enthralled, mesmerized, rapt
fanaticalmoderate
Lessen intensity or preside
apathetic · indifferent · lukewarm · unenthusiastic · halfhearted
fanaticaldispassionate
Free from emotional involvement
passionless · unemotional · cool · calm · collected
fanaticalreasonable
Showing sound judgment
balanced · level-headed · impartial · open-minded · judicious
- fitness fanaticPerson obsessed with exercise
- religious fanaticismExtreme, uncompromising spiritual conviction