thinness, tenuity, slenderness -- (relatively small dimension through an object as opposed to its length or width; "the tenuity of a hair"; "the thinness of a rope")
rarity, tenuity, low density -- (a rarified quality; "the tenuity of the upper atmosphere")
feebleness, tenuity -- (the quality of lacking intensity or substance; "a shrill yet sweet tenuity of voice"- Nathaniel Hawthorne)
(TTS Sound)
