starkness vs boundary

starkness and boundary both are nouns.

Word	Noun	Adjective	Verb	Adverb
starkness	Yes	No	No	No
boundary	Yes	No	No	No

As nouns, boundary is a hypernym of starkness; that is, boundary is a word with a broader meaning than starkness:

Other hypernyms of starkness include bound, limit.

starkness (noun)	boundary (noun)
an extreme lack of furnishings or ornamentation	the greatest possible degree of something
the quality of being complete or utter or extreme	the line or plane indicating the limit or extent of something
	a line determining the limits of an area