Left out is a commonly used phrase to describe exclusion or neglect. However, there are a plethora of other words and phrases that can be used in place of left out, depending on the context and tone of the conversation. Some synonyms for left out include excluded, ignored, overlooked, neglected, ostracized, isolated, marginalized, abandoned, forsaken, forgotten, and set aside. Therefore, if one wants to express exclusion or neglect in a different or more nuanced way, they can make use of these synonyms to add more depth and variety to their language.