Definition: Unboxed is a phrase used in computer science and programming to describe an object that has been completely opened up or unsealed from its original packaging. This means that it is not enclosed with any kind of material, such as plastic or bubble wrap, but rather it is open to the elements without any restrictions. For example, if you have a box of pencils and you open them all out and look inside, they are not completely sealed in their original packaging, but rather each pencil has been opened up