English

Noun

unspeakableness ‎(uncountable)

1. The condition or quality of being unspeakable.
   • 2007, Paul Berton, "How do we define gruesome? (editorial)," London Free Press, Canada, 27 Jan.,

     Obviously, it's the unspeakableness, the sheer horror of it, that is motivating some news organizations.

References

• Oxford English Dictionary, 2nd ed., 1989. See "unspeakable."