Difficult to grasp or understand; abstruse, profound.
Little known; esoteric, secret.
Having mastery over one's field, including its esoteric minutiae; learned.
Deliberately employing abstruse or esoteric allusions or references; intentionally obscure.
A recondite (hidden or obscure) person or thing.
A scholar or other person who is recondite, that is, who has mastery over his or her field, including its esoteric minutiae.
Impossible or difficult to pronounce or articulate.
Something difficult or impossible to pronounce.