sealed book

noun

1. something beyond understanding and therefore unknown.

sealed book

noun

1. another term for closed book

Word History and Origins

Origin of sealed book¹

First recorded in 1810–20

Example Sentences

Henceforth our work is to be a sealed book to her, till at least such time as we can tell her that all is finished, and the earth free from a monster of the nether world.

From Literature

A similar explanation of fossils was given by the engineer-artist Leonardo de Vinci in the fifteenth century, and by the potter Bernard Palissy, in the sixteenth century; but thence onward, for more than a hundred years, the earth was as a sealed book to man.

From Project Gutenberg

The revelation still remains, therefore, a sealed book until "after the resurrection."

From Project Gutenberg

Even distant Europe was no sealed book to them.

From Project Gutenberg

Ely, rising majestic from the plain; the very singular and impressive run along the sandy coast from Cromer to Wells-next-Sea; the road on thence to Hunstanton and Lynn; the glorious expanses of heath in many parts of Norfolk and Suffolk; the extraordinary hedges of fir along the roadside near Elvedon and in many another place—all these things, and a score besides—were as a sealed book to me.

From Project Gutenberg