adherent of
a person who supports a particular idea or party
convert to
someone who has taken on a new set of beliefs
fanatic
(disapproving) someone with a very strong belief that something is great
radical
someone who believes there should be extreme change, often political
reactionary
(disapproving) someone opposed to change or new ideas
seek to eradicate
abolish or get rid of
tenet
a principle on which a belief is based
proponents
person who publicly supports an opinion
derive from
have their origins in
civil disobedience
when a group of people express disapproval of laws by refusing to obey them
viewpoint / point of view
a way of thinking about a situation
credible
believable
incredulous
not wanting or able to believe something
gullible
easily tricked into believing things that may not be true
subjective
influenced by beliefs or feelings rather than facts
objective
unbiased; not subjective
plausible
convincing
implausible
not believable
attribute to
consider something to be caused or created by
presume
believe something to be true although you are not totally certain
give her the benefit of the doubt
accept that someone is telling the truth even though it is not certain
take with a pinch of salt
do not totally believe what you are told