Synonyms for Idyllic (same or very similar meaning)
WordNet sense 1 (suggestive of an idyll; charmingly simple and serene):
pastoralWordNet sense 2 (affording pleasure; being in harmony with your taste or likings):
pleasantWordNet sense 3 (being complete of its kind and without defect or blemish):
perfect, perfectFrom the ODE community, based on WordNetadd/edit