擅自
shàn​zì HSK7

without authorization

擅自 shàn​zì
without authorization adverb
To do something on one's own initiative without having the permission or authority to do so; without permission; unauthorized

我说过不要擅自行事。

wǒ shuō guo bù​yào shàn​zì xíng​shì.

I told you not to act on your own.

Frequency
Movie subtitles
5.16 per million appears in 3% of films
Written text
13.2 per million

Details
HSK 2.0
Level 6
HSK 3.0
Level 7

Cross-References

Same as

Sources
Frequency data
SUBTLEX-CHBCC Corpus (BLCU)