Countless

The amount of plastic waste in the ocean is countless.

His dedication to his craft resulted in countless hours of practice.

The amount of data that can be stored on this device is countless.

The number of species in the Amazon rainforest is countless.

The possibilities for using this tool are countless.

The factory produced countless widgets every day.

The artist had countless ideas for her next painting.

The author has written countless books, each one unique.

There are countless different species of insects in the world.

The beach was covered with countless seashells.

The book contained countless historical inaccuracies.

She received countless compliments on her outfit at the party.

I've watched countless movies, but this one is by far the best.

There are countless reasons to exercise regularly.