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1. Relatively small dimension through an object as opposed to its length or width
   "the thinness of a rope";
   - tenuity, slenderness
    
2. The property of having little body fat
   - leanness, spareness
    
3. The property of being very narrow or thin
   "he marvelled at the thinness of her hair";
   - fineness
    
4. The property of being scanty or scattered; lacking denseness
   - sparseness, spareness, sparsity
    
5. A consistency of low viscosity
   "he disliked the thinness of the soup"
    
6. The 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."

Type of: bodily property, body, consistence, consistency, dimension, exiguity, leanness, meagerness [N. Amer], meagreness [Brit, Cdn], narrowness, poorness, scantiness, scantness, substance

Antonym: thickness

Encyclopedia: Thinness