The Chinese word 粗糙 is a compound word formed by combining two characters with similar meanings to reinforce a concept. The first character, 粗 (cū), primarily means "coarse", "thick", or "rough". The second character, 糙 (cāo), specifically means "rough" or "unpolished". When paired together, they create a single, emphatic adjective that describes a surface or texture that is coarse and rough, and by extension, can describe work or craftsmanship that is crude, rough, or done without refinement. This formation follows a common pattern in Chinese where synonymous or related characters are combined to specify and strengthen an idea.