pseudo vs deceiver

pseudo and deceiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
pseudo	Yes	Yes	No	No
deceiver	Yes	No	No	No

As nouns, deceiver is a hypernym of pseudo; that is, deceiver is a word with a broader meaning than pseudo:

Other hypernyms of pseudo include beguiler, cheat, cheater, slicker, trickster.

pseudo (noun)	deceiver (noun)
a person who makes deceitful pretenses	someone who leads you to believe something that is not true

pseudo (adjective)	deceiver (adjective)
(often used in combination) not genuine but having the appearance of