wú​shù HSK4

countless

无数 無數 wú​shù
countless numeral
innumerable; numberless; extremely many

I’ve experienced countless failures.

You have countless fans.

to be unsure
to not know the facts or details of a situation; to lack confidence or be uncertain
unlimited
not having a fixed number or limit

Frequency

Movie subtitles
19.5 per million appears in 9% of films
Written text
41.5 per million

Details

HSK 2.0
Level 5
HSK 3.0
Level 4

Sources