Examples from the Web for hiddenness
The eyes take in that hiddenness in a way the mind alone never could.
The gifts she needed from the Holy Ghost were those of hiddenness, patience, humility, conformity to God's will.Mater Christi|Mother St. Paul
British Dictionary definitions for hiddenness
Word Origin and History for hiddenness (1 of 2)
past participle of hide (v.1); a Middle English formation (Old English had gehydd "hidden") on the model of ride/ridden, etc. Hidden persuaders (1957) was Vance Packard's term for "ad men."