What does "utterness" mean?

The state or condition of being utter.

Utterness

Common synonyms include: absoluteness, articulation, completeness, expression, extremity, speech.

noun

noun ·Rare ·Advanced level

Noun

1
The state or condition of being utter. uncountable
"We were appalled by the utterness of the destruction."
2
the quality of being complete or utter or extreme wordnet

"We were appalled by the utterness of the destruction."

From utter + -ness.