thwarter vs resister

thwarter and resister both are nouns.

Word	Noun	Adjective	Verb	Adverb
thwarter	Yes	No	No	No
resister	Yes	No	No	No

As nouns, thwarter and resister are synonyms defined as:

thwarter and resister: someone who systematically obstructs some action that others want to take

Other synonyms of thwarter include obstructer, obstructionist, obstructor.

thwarter (noun)	resister (noun)
someone who systematically obstructs some action that others want to take	someone who systematically obstructs some action that others want to take
	someone who offers opposition