out of book

prepositional phrase

No longer following commonly played theoretical lines analyzed in opening books; in territory unfamiliar to one or both of the players.

Similar
out of preparation
Opposite
in book
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Meanings

prepositional phrase
  1. board gamesNo longer following commonly played theoretical lines analyzed in opening books; in territory unfamiliar to one or both of the players.

    Synonyms: out of preparation · Antonyms: in book

Synonyms & antonyms

prepositional phraseNo longer following commonly played theoretical lines analyzed in opening books; in territory unfamiliar to one or both of the players.

Similar
out of preparation
Opposite
in book
Also see
out of preparation
Cite this entry
APA

out of book. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/out%20of%20book

MLA

“out of book.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/out%20of%20book. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “out of book,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/out%20of%20book.

Source: out of book on Wiktionary, CC BY-SA 4.0.