Coordinate adjectives vs. cumulative adjectives in sentence

Should I put a comma between the two adjectives wasted and countless in the following sentence?

There are wasted, countless opportunities out there.

Or should the sentence be:

There are wasted countless opportunities out there.

? Are these two adjectives coordinate or cumulative?

I guess they are coordinate because their order can be changed or we can use an and conjunction and the sentence would still sound quite right:

There are countless, wasted opportunities out there.

Or:

There are countless and wasted opportunities out there.

Thank you for your attention.