Years ago, the Federal Dept of Education pushed a theory called the Common Body of Knowledge (CBOK). My mom hated it and fought it for years because it's recondite knowledge that makes you special.

Better late, than never? Well, so I have heard.

Recondite:

It's rather difficult to penetrate the meaning of recondite. Fitting, because it's an adjective that basically means hard for the average mind to understand.

If it's really hard to comprehend, then it's safe to say it's recondite. In the same family as "abstruse," "esoteric" and "totally deep, man," recondite is a very serious word that you could use to describe obscure philosophy books, high level mathematical theory, and the series finale of The Sopranos — you know, things that make your brain hurt.

Recondite - Definition, Meaning & Synonyms | Vocabulary.com

The above led me to the word, "abstruse"! Obtuse, I knew, but abstruse, was new to me. Here is what I found.

Abstruse:

Abstruse things are difficult to understand because they are so deep and intellectually challenging. It might be hard to figure out how the inside of a wristwatch works with all the tiny, complicated pieces but something abstruse is much harder to grasp, like the quantum mechanics applied to making atomic clocks for navigational purposes.

The Latin roots of the word abstruse are about concealing or hiding something, which is a good way to remember the meaning of this word. It is useful when describing something that is overly confusing, or if someone is deliberately making a story or a situation more complicated than necessary. It sounds and looks like obtuse, but abstruse is almost its opposite. Obtuse is dull or lacking a sharpness of intellect. While Abstruse is president of the chess club, Obtuse is hanging out by the parking lot smoking cigarettes.

Abstruse - Definition, Meaning & Synonyms | Vocabulary.com

Today, I replied with two(new, to me) words for you. One was asked for and one  I volunteered.

Thank you,

Thanks for this @sandrewn; "It's rather difficult to penetrate the meaning of recondite. Fitting, because it's an adjective that basically means hard for the average mind to understand". That helps explain the point I was making in saying recondite is an autological word. An autological word is a word that describes itself, as recondite does.

There we have a third associated, and possibly new, word.

Enjoy.