also: かずしらず
expression
Used as a set phrase meaning 'too many to count'. Often modifies nouns directly or appears at the end of a clause.
夜空には数知れずの星が輝いていた。
Countless stars were shining in the night sky.
彼が受けた恩恵は数知れずだ。
The favors he has received are innumerable.