Meaning of INDISPENSABILITY

WordNet Dictionary
	Definition:		[n]  the quality possessed by something that you cannot possibly do without
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	Synonyms:		indispensableness, vitalness
	Antonyms:		dispensability, dispensableness
	See Also:		essentiality, essentialness
Webster's 1913 Dictionary
	Definition:		\In`dis*pen`sa*bil"i*ty\, n. [Cf. F. indispensabilit['e].] Indispensableness.