What does "unspeakableness" mean?

The condition or quality of being unspeakable.

What is a synonym for "unspeakableness"?

Common synonyms include: baseness, contrariety, harshness, ignobility, obscenity, repugnance.

noun

noun ·Rare ·Advanced level

Noun

1
The condition or quality of being unspeakable. uncountable
"Obviously, it's the unspeakableness, the sheer horror of it, that is motivating some news organizations."

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

From unspeakable + -ness.