Definition of indispensableness in English:

indispensableness

Pronunciation /ˌindəˈspensəb(ə)lnəs/ /ˌɪndəˈspɛnsəb(ə)lnəs/

noun

See indispensable

‘Her work has none of the emotional intensity with which partisans of certain colonies or races demonstrate their indispensableness to the patriot cause.’
  • ‘Having said all that, Sue’s being uncharacteristically nice to me, but I’m putting that down to my temporary indispensableness (it is a real word, honestly.)’