Yes. Maybe tax/taxing/taxed coin.
Discussion
On a serious note,
Tax is irrelevant if the government can just print money.
But under a Bitcoin Standard, we would want somebody to do the admin and finances for each of our countries. This we can loosely call a government, which we would need to pay them some Bitcoin to do and we could’ve used the word tax if it hadn’t been previously abused.
No issue there. The idea that a coin is stable vs unstable is one thing. The idea that a coin is taxable (aka printable) and untaxable is another.
Taxable Coin is the more appropriate name.