Noun has 2 senses

• starkness(n = noun.attribute) absoluteness, utterness - the quality of being complete or utter or extreme; "the starkness of his contrast between justice and fairness was open to many objections"

Derived form adjective stark₁, adjective stark₃

• starkness(n = noun.attribute) bareness - an extreme lack of furnishings or ornamentation; "I was struck by the starkness of my father's room"

Derived form adjective stark₂, adjective stark₅