1. (adj)thoroughbred, purebred, pureblood a pedigreed animal of unmixed lineage; used especially of horses Synonyms: thoroughbred, pureblood, purebred Antonyms: crossbred
2. (adj)pedigree(a), pedigreed, pureblood, pureblooded, thoroughbred having a list of ancestors as proof of being a purebred animal Antonyms: crossbred