The term "cross-breeds" refers to animals or plants that have been produced by crossing two different breeds or varieties. The antonyms for cross-breeds are "purebreds" or "pedigrees" which are animals or plants that have a documented and traceable lineage of only one breed or variety. Purebred animals are often recognized by certain traits, behaviors, and physical appearances that are specific to their breed. Additionally, pedigrees are also commonly used in the breeding industry as a means of ensuring genetic diversity and maintaining desirable traits within a particular breed. In contrast, cross-breeds can sometimes lack predictability in terms of their size, behavior, and health, making them less desirable for some breeders and owners.