Enter a clue or pattern or both:
The Clue
Deep (8 letter answer)
The Answer
ABSTRUSE
Tags
Notes
The answer ABSTRUSE is so rare that it appears less than once every 2500 puzzles.
Related Clues
Esoteric
Recondite
Definition
ABSTRUSE as an adjective:
1. (abstruse, deep, recondite) = difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge; "the professor's lectures were so abstruse that students tended to avoid them"; "a deep metaphysical theory"; "some recondite problem in historiography"