不成体统

不成體統
bùchéngtǐtǒng
  1. not according with decorum (idiom); scandalous
  2. bad form
  3. unacceptable behavior

CEDICT

most improper; downright outrageous

Wiktionary

不符合身分、规矩、礼仪。

重編國語辭典

不符合规矩、礼仪，不像样

維基詞典

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 体统 tǐtǒng
  1. decorum
  2. propriety
  3. arrangement or form (of piece of writing)

Related entries

失体统 shītǐtǒng
  1. lacking in propriety
  2. bad form
不合体统 bùhétǐtǒng
  1. not according with decorum
  2. scandalous
  3. bad form
  4. unacceptable behavior