abstruse
adj. 深奥的
副词：abstrusely 名词：abstruseness
近义词：recondite，puzzling，profound，obscure，deep，esoteric，unknowable，abstract，unexplainable，impenetrable，difficult，inscrutable，indecipherable，incomprehensible，mystical，mystic，unfathomable，dim，enigmatic，insoluble，undecipherable，uncomprehensible，inexplicable，enigmatical，vague，cabalistic，insolvable，unaccountable，dark，nebulous，complicated，perplexing，complex，mysterious，rarefied，technical，highbrow，beyondunderstanding，understanding，beyond，understand，to，easy，
英英释义
Adjective
- 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"
例句
用作形容词(adj.)
- Philosophical semantics is too abstruse to understand.哲学语义学深奥难懂。
- Einstein's theory of relativity is very abstruse.爱因斯坦的相对论非常难懂。