Necessariness
The Century Dictionary and Cyclopedia
noun.
The state of being necessary.
the GNU version of the Collaborative International Dictionary of English
noun.
The quality of being necessary.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
The state or characteristic of being
necessary
.
Word Usage
"I sense that he senses the "necessariness" of his being elected and that there is a certain amount of calculation involved in his moderate posing on big progressive issues."