Synonyms for Splendid (same or very similar meaning)
WordNet sense 1 (characterized by grandeur):
brilliant, glorious, magnificentWordNet sense 2 (making a strong or vivid impression):
impressiveWordNet sense 3 (having great beauty and splendor):
resplendent, splendiferousWordNet sense 4 (delighting the senses or exciting intellectual or emotional admiration):
beautifulFrom the ODE community, based on WordNetadd/edit