deviationist vs deserter

deviationist and deserter both are nouns.

Word	Noun	Adjective	Verb	Adverb
deviationist	Yes	No	No	No
deserter	Yes	No	No	No

As nouns, deserter is a hypernym of deviationist; that is, deserter is a word with a broader meaning than deviationist:

deviationist: an ideological defector from the party line (especially from orthodox communism)
deserter: a person who abandons their duty (as on a military post)

Other hypernyms of deviationist include defector.

deviationist (noun)	deserter (noun)
an ideological defector from the party line (especially from orthodox communism)	a person who abandons their duty (as on a military post)
	a disloyal person who betrays or deserts his cause or religion or political party or friend etc.