Open English Wordnet
Nouns
(n)thinness, tenuity, slendernessrelatively small dimension through an object as opposed to its length or width“the tenuity of a hair”,
“the thinness of a rope” (n)fineness, thinnessthe property of being very narrow or thin“he marvelled at the fineness of her hair” (n)thinnessa consistency of low viscosity“he disliked the thinness of the soup” (n)thinnessThe property of lacking substance or strength.“Perhaps because he recognized the thinness of this critique, the language about lack of theory that appeared in the dissertation was replaced in the book by a more modest critique that PWD lacked adequate conceptual definitions.”