In my opinion, "Unlimited power" is a more natural and elegant phrase but it wasn't accepted.
What is the difference between "Kekuasaan" and "Kekuatan"?
Kekuasaan means like you can control something/ someone/people, whilst kekuatan means strength
"Power without limit" is much more likely that "a limitless power."
"Power tends to corrupt and absolute power corrupts absolutely" - Lord Acton
I suggest we should be more creative than keep using the word "hal" or "thing". For example: "Power without limit can/could create dangerous situations."