tameness vs vapidness

tameness and vapidness both are nouns.

Word	Noun	Adjective	Verb	Adverb
tameness	Yes	No	No	No
vapidness	Yes	No	No	No

As nouns, tameness and vapidness are synonyms defined as:

Other synonyms of tameness include jejuneness, jejunity, vapidity.

tameness (noun)	vapidness (noun)
the attribute of having been domesticated	the quality of being vapid and unsophisticated
the quality of being vapid and unsophisticated