Definition of unspeakableness in English:

unspeakableness

noun

See unspeakable

‘I believe the silence was the result of the unspeakableness of what they had experienced and the belief that no one would understand them if they did try to convey it.’
  • ‘It is this absence, this unspeakableness, through which sexuality is regulated.’
  • ‘The language of "unspeakableness" has practical problems and theological ones.’
  • ‘The unspeakableness of abuse has implications at several levels.’
  • ‘It is the unspeakableness of things that Whitman most commonly dramatizes.’