reactionary vs ultraconservative

reactionary and ultraconservative both are nouns.

Word	Noun	Adjective	Verb	Adverb
reactionary	Yes	Yes	No	No
ultraconservative	Yes	Yes	No	No

As nouns, reactionary and ultraconservative are synonyms defined as:

reactionary and ultraconservative: an extreme conservative; an opponent of progress or liberalism

Other synonyms of reactionary include extreme right-winger.

reactionary (noun)	ultraconservative (noun)
an extreme conservative; an opponent of progress or liberalism	an extreme conservative; an opponent of progress or liberalism

reactionary (adjective)	ultraconservative (adjective)
opposed to political or social liberalism or reform	extremely conservative