Moderate as in riddle A subject or matter that is not easily understood or remains puzzling. Clear All
2 Example Sentences Showcasing the Meaning of 'Closed Book'
Trying to comprehend the complexities of quantum mechanics can make even advanced students feel like they are facing a closed book.
Emily found the ancient poetry forms to be a closed book, struggling to decipher their meanings.
Report
Meaning
Contribute
Copied