TOEFL iBT score of 103/120, enjoy reading about grammar constructs (not the formal grammar which is math-related although I like it too), and just thought of the word “impromptu” when I wanted to type this entry (which after googling “define impromptu” gives the meaning similar to unplanned, a perfect adjective for this entry). Yay.
I’m also a sesquipedalian, and I just searched the meaning of “hippopotomonstrosesquipedalian”. Apparently it’s an adjective applied to long words, while sesquipedalian is a noun describing either long words or people using long words. Meh hippopotomonstro- prefix is weird.