DICT.TW Dictionary Taiwan

 ab·struse /əbˈstrus, æb-/
 (a.)難解的,深奧的

 Ab·struse a.
 1. Concealed or hidden out of the way. [Obs.]
 The eternal eye whose sight discerns
 Abstrusest thoughts.   --Milton.
 2. Remote from apprehension; difficult to be comprehended or understood; recondite; as, abstruse learning.
    Profound and abstruse topics.   --Milman.
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 abstruse
      adj : 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" [syn: deep, recondite]