dullness vs tameness

dullness and tameness both are nouns.

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

As nouns, tameness is a hyponym of dullness; that is, tameness is a word with a more specific, narrower meaning than dullness:

dullness (noun)	tameness (noun)
lack of sensibility	the attribute of having been domesticated
without sharpness or clearness of edge or point	the quality of being vapid and unsophisticated
the quality of lacking interestingness
a lack of visual brightness
the quality of being slow to understand