In 1917, Fred M. Gerlach published a book with the innocuous title of Vocabulary Studies. This slim volume was based on a series of quizzes Gerlach had given to students in an effort to determine their vocabulary size.
The words which follow are taken directly from a quiz Gerlach gave to high school and college students in Colorado circa 1915. The instructions for this section were “Give a working definition for each of the following words with which you are familiar.”
As we don't know the results of the quiz, we cannot accurately judge whether you're smarter than an early 20th century high school student. It does seems certain, however, that this quiz was either much more difficult than it needed to be, or that the students in question had substantially different vocabularies than most students (or adults) have today.