thinness (

     n 1: relatively small dimension through an object as opposed to
          its length or width: "the tenuity of a hair"; "the
          thinness of a rope" [syn: tenuity, slenderness]
          [ant: thickness]
     2: the property of having little body fat [syn: leanness]
        [ant: fatness]
     3: the property of being very narrow or thin; "he marvelled at
        the fineness of her hair" [syn: fineness]
     4: a consistency of low viscosity; "he disliked the thinness of
        the soup" [ant: thickness]