thwarter vs obstructionist

thwarter and obstructionist both are nouns.

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

As nouns, thwarter and obstructionist are synonyms defined as:

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

Other synonyms of thwarter include obstructer, obstructor, resister.

thwarter (noun)	obstructionist (noun)
someone who systematically obstructs some action that others want to take	someone who systematically obstructs some action that others want to take