不成文

bùchéngwén
unwritten (rule)

CEDICT

  1. (attributive) unwritten; conventional; customary; implied
  2. unwritten; conventional; customary; implied

Wiktionary

不能织成经纬文理。《文选．曹植．杂诗六首之三》：「明晨秉机杼，日昃不成文。」也作「不成章」。

重編國語辭典

Entry Composition

1 不成 bùchéng
  1. won't do
  2. unable to
  3. (at the end of a rhetorical question) can that be?
2 文 wén
  1. language
  2. culture
  3. writing
  4. formal
  5. literary
  6. gentle
  7. (old) classifier for coins
  8. Kangxi radical 67

Containing this entry

不成文法 bùchéngwénfǎ unwritten law