What does "hiddenness" mean?

The state, property or quality of being hidden.

Hiddenness

Common synonyms include: burial, closeness, concealing, concealment, concealment, concealment of evidence.

noun

noun ·Rare ·Advanced level

Noun

1
The state, property or quality of being hidden. uncountable, usually
"I sat down, grateful for the shade and my hiddenness from the path below."
2
the state of being covert and hidden wordnet
3
The result or product of being hidden. countable, usually

"I sat down, grateful for the shade and my hiddenness from the path below."

From Middle English hyddenesse; equivalent to hidden + -ness.