qīng​nuò​guǎ​xìn

to make promises lightly and rarely keep them

轻诺寡信 輕諾寡信 qīng​nuò​guǎ​xìn
to make promises lightly and rarely keep them
To be quick to make promises but slow to keep them; describes someone who is untrustworthy because they agree to requests without considering if they can fulfill them

Frequency

Written text
0.012 per million

Sources

Frequency data
BCC Corpus (BLCU)