deportment vs demeanor

deportment and demeanor both are nouns.

Word	Noun	Adjective	Verb	Adverb
deportment	Yes	No	No	No
demeanor	Yes	No	No	No

As nouns, deportment and demeanor are synonyms defined as:

deportment and demeanor: (behavioral attributes) the way a person behaves toward other people

Other synonyms of deportment include behavior, behaviour, conduct, demeanour.

deportment (noun)	demeanor (noun)
(behavioral attributes) the way a person behaves toward other people	(behavioral attributes) the way a person behaves toward other people