thoroughbred

noun3

1. •
   Any purebred horse.
2. •
   A person of uncommon strength or endurance (like that of a thoroughbred horse).

   • That athlete is a real thoroughbred.
3. •
   A well-bred person.

adjective2

1. •
   Bred from pure stock.
2. •
   Well-bred and properly educated.

noun1

1. •
   A horse of a breed derived from crosses between Arabian stallions and English mares, bred for racing, with its breeding history recorded in an official stud book.