numberless

adjective
UK /ˈnʌmbələs/
US /ˈnʌmbərləs/

So many that you cannot count them.

The night sky was full of numberless stars.


OTHER MEANINGS

2. Having no number or numbering.

The pages of the old notebook were numberless.

3. Too great to be counted or measured.

She faced numberless challenges during the journey.

4. Lacking a numerical designation or label.

The numberless seats in the hall confused the visitors.