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| it's anybody's guess | |||
| is anyone's guess (ART Vancouver) | |||
is pretty much anybody's guess (Precisely how the man knew what ‘a witchcraft ceremony' involving decapitated water-fowl might look like, however, is pretty much anybody's guess.  mysteriousuniverse.org ART Vancouver) | |||
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| lurking; known to nobody (MichaelBurov); totally obscure (MichaelBurov); unheard-of (MichaelBurov); unknown (MichaelBurov) | |||
| with no claim to fame (Natalia D) | |||
| unbeknownst (Rus: отрицание известности MichaelBurov) | |||
| никому не известно: 13 phrases in 3 subjects |
| Chess | 2 |
| General | 10 |
| Obsolete / dated | 1 |