closed book
closed book · closed books
секрет, таємниця
секрет, тайна
Geheimnis
A person or thing that cannot be easily understoodA person or thing that cannot be easily understood; someone or something incomprehensible or puzzling.
Meaning
1 senses(idiomatic)A person or thing that cannot be easily understood; someone or something incomprehensible or puzzling.
More definitions
- something that baffles understanding and cannot be explained
Forms
plural: closed books| Singular | closed book |
|---|---|
| Plural | closed books |
regular