"Monumented" is a word that refers to something having been marked by a monument. Synonyms for "monumented" can include "memorialized," "commemorated," "enshrined," and "honored." These words all convey the sense of something being remembered in a permanent or significant way. Other synonyms might include "marked," "designated," "indicated," or "identified," which indicate that something has been singled out or highlighted for attention. Depending on the context, other words like "celebrated," "praised," or "acknowledged" might also be used to describe something that has been commemorated, either for its historical significance or for its ongoing impact.