What part of speech is unexchangeability?

Unexchangeability can be categorized as a noun.

Parts of speech

• 1. unexchangeability is a noun, singular of unexchangeabilities / unexchangeabilityes.

Inflections

Noun

• Singular

  Plural
• unexchangeability 

  unexchangeabilities  / unexchangeabilityes 

• Singular: unexchangeability 
• Plural: unexchangeabilities  / unexchangeabilityes 

What does unexchangeability mean?