tenuity

te·nu·i·ty  (t-n-t, -ny-)

n.

The quality or condition of being tenuous; lack of thickness, density, or substance.

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[Middle English tenuite, from Old French, from Latin tenuits, thinness, from tenuis, thin; see tenuous.]

Thesaurus

Noun	1.	tenuity - relatively small dimension through an object as opposed to its length or width; "the tenuity of a hair"; "the thinness of a rope" thinness, slenderness dimension - the magnitude of something in a particular direction (especially length or width or height)
	2.	tenuity - a rarified quality; "the tenuity of the upper atmosphere" low density, rarity density, denseness - the amount per unit size
	3.	tenuity - the quality of lacking intensity or substance; "a shrill yet sweet tenuity of voice"- Nathaniel Hawthorne feebleness weakness - the property of lacking physical or mental strength; liability to failure under pressure or stress or strain; "his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed"