The condition of being essential; essentiality(noun)
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Use "essentialness" in a sentence
"Whatever other objections have been made to this second proposition, arise, as far as I remember, merely from a confusion of the idea of essentialness or primariness with the idea of nobleness."
"Those of us who believe in the essentialness of openness and freedom of choice on the web must continue to remain vigilant about such abuses, distortions and misappropriations of the term “open” — and do what we can to spread awareness of the importance of free and unfettered technology development."
""And I suppose the essentialness of writing for me was revealed in that experience.""