Crossbreed refers to the offspring of two different breeds or species. In contrast, purebred refers to an individual animal whose parents and ancestors belong to the same breed. Other antonyms for crossbreed include unmixed, homogeneous, and uniform. Unmixed refers to an individual that bears the traits of a single breed or type. Homogeneous also implies sameness or uniformity, but not necessarily purebred. Uniform emphasizes the qualities that define a particular breed and the consistent characteristics of its members. All of these antonyms contrast with crossbreed by emphasizing the absence of genetic mixing or variability.