abandoned
"Abandoned" refers to something that has been left behind or deserted. This can apply to places, such as abandoned buildings or ghost towns, where people once lived or worked but have since moved away. It can also describe pets or animals that have been left without care or a home.
In a broader sense, "abandoned" can relate to feelings or ideas that have been neglected or disregarded. For example, a project may be considered abandoned if no one is working on it anymore. This term highlights a sense of loss or neglect associated with the object or idea in question.