When it comes to the term "picture-postcard," there are several synonyms that one can use. It refers to something that is picturesque or picturesque in a way that looks like a perfect postcard. The word is often used to describe a place that is idyllic and beautiful. Some alternatives to "picture-postcard" could be "idyllic," "picturesque," "scenic," "beautiful," "quaint," "charming," or "enchanting." Other words that may work could include "serene," "stunning," "delightful," "lovely," or "gorgeous." Whether you're describing a setting, scene or place, these synonyms can help bring it to life in a more vivid and lively manner.