bù​míng

unknown

不明 bù​míng
unknown adjective
not clear; unknown; uncertain
to fail to understand
to fail to understand or appreciate something; to be unable to distinguish between things
dim
not bright; dim; lacking light
unwise
(literary) not wise or sensible; used to describe a ruler who lacks judgment or insight
not proficient
lacking proficiency or skill in a specific field or activity

Frequency

Movie subtitles
11.5 per million appears in 3% of films
Written text
18.8 per million

Sources