Winterbound refers to being trapped, confined, or restricted by the winter season. It's a word that often conjures up images of snowbound towns, icy roads, and freezing temperatures. However, there are several other synonyms for winterbound that you can use to convey similar, albeit slightly different, meanings. Some of these include snowed-in, frozen, trapped, marooned, and immobilized. Each of these words conveys a sense of being stuck or hindered in some way by the season's harsh weather conditions. Whether you're talking about being snowed in at home or trapped in the middle of a snowstorm, there are plenty of ways to describe what it means to be winterbound.