Nonfibrous refers to the absence of fibers in a substance or material. Its antonym, therefore, would be "fibrous," which means containing fibers. Fibrous materials are known for their toughness, elasticity, and durability. Examples of fibrous materials include cotton, wool, silk, and linen. In contrast, nonfibrous materials such as plastics, ceramics, and metals lack the strength and flexibility of fibrous materials. When choosing materials for specific applications, it is essential to consider the characteristics of both fibrous and nonfibrous materials. Understanding the antonym of nonfibrous can be useful in identifying materials that possess the qualities required for a particular task.