indeterminateness vs indetermination

indeterminateness and indetermination both are nouns.

Word	Noun	Adjective	Verb	Adverb
indeterminateness	Yes	No	No	No
indetermination	Yes	No	No	No

As nouns, indeterminateness and indetermination are synonyms defined as:

indeterminateness and indetermination: the quality of being vague and poorly defined

Other synonyms of indeterminateness include indefiniteness, indefinity, indeterminacy.

indeterminateness (noun)	indetermination (noun)
the quality of being vague and poorly defined	the quality of being vague and poorly defined