口齿不清

口齒不清
kǒuchǐbùqīng
  1. to lisp
  2. unclear articulation
  3. inarticulate

CEDICT

to have slurred speech; to be unable to speak clearly

Wiktionary

Entry Composition

1 口齿 kǒuchǐ
  1. mouth and teeth
  2. enunciation
  3. to articulate
  4. diction
  5. age (of cattle, horses etc)
2 不清 bùqīng unclear

Related entries

口讷 kǒunè (literary) inarticulate
嘴笨 zuǐbèn inarticulate
讷 nè
  1. to speak slowly
  2. inarticulate
木讷 mùnè
  1. wooden and slow of speech
  2. slow-speeched
  3. inarticulate
  4. unsophisticated
笨嘴笨舌 bènzuǐbènshé
  1. clumsy in speaking
  2. awkward
  3. inarticulate
词不达意 cíbùdáyì
  1. words do not convey the meaning
  2. poorly expressed
  3. senseless
  4. inarticulate
断断续续 duànduànxùxù
  1. intermittent
  2. off and on
  3. discontinuous
  4. stop-go
  5. stammering
  6. disjointed
  7. inarticulate
雨斷斷續續地下了一整天。

It rained on and off all day.

Source: Tatoeba