It’s often better to dumb it down

It might be the perfect word.

It might summarise exactly what you want to say in a single concept.

It might infer all of the subtleties that you are trying to express and carefully avoid communicating something that you don’t want to.

It might even make you feel smarter for using it.

However, if several shorter, more common, easier to understand words would make the reader’s experience better it’s often better to dumb it down.