ಅರ್ಥ : Difficult to penetrate. Incomprehensible to one of ordinary understanding or knowledge.
ಉದಾಹರಣೆ :
The professor's lectures were so abstruse that students tended to avoid them.
A deep metaphysical theory.
Some recondite problem in historiography.
ಸಮಾನಾರ್ಥಕ :
abstruse, deep