What does "grossness" mean?

Lack of refinement in character, behaviour etc.; coarseness.

What is a synonym for "grossness"?

Common synonyms include: coarseness, vulgarity, animalism, animality, bad taste, barbarism.

Pronounced //ˈɡɹəʊsnəs//.

/ˈɡɹəʊsnəs/ noun, slang

noun, slang ·Moderate ·High school level

Noun

1
Lack of refinement in character, behaviour etc.; coarseness. countable, uncountable
"Now that he was doing so much else she could never have the grossness to apply for it to Sir Claude."
2
the quality of lacking taste and refinement wordnet
3
The quality of being repulsive or disgusting. countable, slang, uncountable
4
Size. countable, obsolete, uncountable

"Now that he was doing so much else she could never have the grossness to apply for it to Sir Claude."

From gross + -ness.