recondite
REK-un-diteadjMeaning little known and hard to understand
Memory hook re-CONDIT: HIDDEN at the BACK. Ada climbs to the dustiest shelf at the back of the library for a book on the moths of a single mountain; knowledge hidden that far back is recondite.
The quiz bowl team studied recondite facts about ancient coins and rare beetles.
In context Most readers found the essay recondite, packed with references to forgotten poets and obscure scientific papers that only a specialist would recognize.
Similar obscure, little-known, difficult, specialized
Opposite simple, familiar, common
From Latin reconditus, “hidden away,” from recondere (to put away, to conceal).