indeterminacy vs indefiniteness

indeterminacy and indefiniteness both are nouns.

Word	Noun	Adjective	Verb	Adverb
indeterminacy	Yes	No	No	No
indefiniteness	Yes	No	No	No

As nouns, indeterminacy and indefiniteness are synonyms defined as:

indeterminacy and indefiniteness: the quality of being vague and poorly defined

Other synonyms of indeterminacy include indefinity, indeterminateness, indetermination.

indeterminacy (noun)	indefiniteness (noun)
the quality of being vague and poorly defined	the quality of being vague and poorly defined