What part of speech is indeterminateness?

Indeterminateness can be categorized as a noun.

Parts of speech

• 1. indeterminateness is a noun, singular of indeterminatenesses.

Inflections

Noun

• Singular

  Plural
• indeterminateness 

  indeterminatenesses 

• Singular: indeterminateness 
• Plural: indeterminatenesses 

What does indeterminateness mean?