The most common and most likely answer to this crossword clue is the 6 letter word ENIGMA which also is the latest solution we found used in Wall Street Journal in 2010.
Closed book crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| ENIGMA | 100 % | 6 |
Words with a meaning similar to the clue: Closed book
These words may or may not be a possible solution to this crosswords clue.- mystery
- enigma
- secret
- unknown quantity
- incomprehension
- darkness
- blindfold
- open book
- opaque
- nonunderstanding
- lock
- unmystery
Crossword Answer definitions
ENIGMA noun- Something or someone puzzling, mysterious or inexplicable.
- A riddle, or a difficult problem.
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution