closed book
noun[S]
informaluk/ˌkləʊzd ˈbʊk/us/ˌkloʊzd ˈbʊk/asubjectabout which youknoworunderstandnothing:
一无所知的学科,完全不懂的学科I'mafraidphysicswill always be aclosedbooktome.恐怕我对物理永远是一窍不通了。
Synonyms
enigma
mystery
secret
Difficult to understand
- abstruse
- ambiguity
- ambiguous
- ambiguously
- antinomy
- fathomless
- garble
- get it into your thick headidiom
- impalpable
- impenetrable
- impenetrably
- indiscernible
- lost
- non-intuitive
- obscurely
- obscurity
- oracular
- prolix
- wasted onsomeoneidiom
- word salad