Fibrousness refers to the quality of having a large amount of fibers. It is commonly used in the context of food, such as fruits and vegetables that are high in fiber. Some synonyms for fibrousnesses include stringiness, toughness, and sinewiness. Other related words include chewiness and coarseness. These words are often used to describe the texture of food, and can be either positive or negative depending on the context. For example, some people enjoy the chewiness of beef jerky, while others find it too tough. Overall, synonyms for fibrousnesses can be helpful for describing the physical properties of food and other materials.