kǒu​wú​zé​yán

measured speech

口无择言 (口無擇言) kǒu​wú​zé​yán
measured speech idiom
to speak so correctly and appropriately that no word needs to be retracted or filtered out
speak recklessly idiom
erroneously used in place of '口不择言 kǒu​bù​zé​yán' to mean speaking without thinking or indiscreetly

Frequency

Written text
0.003 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)