On doing a little reading on the terminology, I believe you are correct. I was looking for a phrase that meant the opposite of relativism, and came up with absolutism. But it appears that moral philosophers generally use that in a way slightly different than I intended, and that what I actually meant was closer to what is generally called “moral universalism” (or sometimes “moral objectivism”). I have updated my post accordingly.
On doing a little reading on the terminology, I believe you are correct. I was looking for a phrase that meant the opposite of relativism, and came up with absolutism. But it appears that moral philosophers generally use that in a way slightly different than I intended, and that what I actually meant was closer to what is generally called “moral universalism” (or sometimes “moral objectivism”). I have updated my post accordingly.