closed-book

Memory only test

Closed-book describes an exam or test where students cannot consult notes, textbooks, or other reference materials: The final is closed-book, so you'll need to memorize the formulas.

By extension, anything closed-book requires relying on memory or existing knowledge rather than looking things up.

Contrast with open-book.

secretive

tight-lipped

Unwilling to divulge

discreet · uncommunicative · taciturn · private · withdrawn · cryptic · cagey · evasive · mysterious · inscrutable

unavailable

out-of-print

No longer being published

unobtainable · withdrawn · unpublished · rare · archived · locked · sealed · lost · suppressed · censored

exam

test

Evaluative examination

proctored · timed · unseen · final · midterm · quiz · evaluation · unaided · memorization · examination

Opposites
examination/test format

closed-bookopen-book

Completely unconcealed, readable

open-notes · take-home · untimed · collaborative

information accessibility

closed-bookopen-book

Completely unconcealed, readable

open · transparent · unrestricted · accessible · public

Family

closed, book, close, closes, closing, closer, closest, closeness, books

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G