staginess vs artificiality

staginess and artificiality both are nouns.

Word	Noun	Adjective	Verb	Adverb
staginess	Yes	No	No	No
artificiality	Yes	No	No	No

As nouns, artificiality is a hypernym of staginess; that is, artificiality is a word with a broader meaning than staginess:

staginess: an artificial and mannered quality
artificiality: the quality of being produced by people and not occurring naturally

staginess (noun)	artificiality (noun)
an artificial and mannered quality	the quality of being produced by people and not occurring naturally