What is perfect in what is undertaken; complete; going all lengths; as, a thoroughplaced Tory or Whig. If she be a thoroughplaced impostor. Sir W. Scott called?

thoroughpaced — Perfect in what is undertaken; complete; going all lengths; as, a thoroughplaced Tory or Whig. If she be a thoroughplaced impostor. Sir W. Scott. (Webster's 1913.)

Sources