信口

xìnkǒu
  1. to blurt sth out
  2. to open one's mouth without thinking

CEDICT

  1. (of speech) without thinking it through; casually; thoughtlessly
  2. without thinking it through; casually; thoughtlessly

Wiktionary

不加思索而任意发言。

重編國語辭典

Entry Composition

1 信 xìn
  1. letter
  2. mail
  3. to trust
  4. to believe
  5. to profess faith in
  6. truthful
  7. confidence
  8. trust
  9. at will
  10. at random

classifier: 封
2 口 kǒu
  1. mouth
  2. classifier for things with mouths (people, domestic animals, cannons, wells etc)
  3. classifier for bites or mouthfuls

Containing this entry

信口胡说 xìnkǒuhúshuō to speak without thinking; to blurt sth out
信口开合 xìnkǒukāihé variant of 信口开河 xìnkǒukāihé
信口开河 xìnkǒukāihé
  1. to speak without thinking (idiom)
  2. to blurt sth out
信口雌黄 xìnkǒucíhuáng
  1. to speak off the cuff
  2. to casually opine

Related entries

信口开河 xìnkǒukāihé
  1. to speak without thinking (idiom)
  2. to blurt sth out