The detective had a lot of corporeal evidence to sort through, unfortunately the bulk of it would prove to be what?\nOptions:\n- intangible\n- spiritual\n- transparent\n- ethereal\n- insubstantial
Let's think now! Step-by-step reasoning:
User
Insubstantial means not being sufficient. When a corporeal evidence is unfortunate that means it is not sufficient.
So, the final answer is insubstantial.
Assistant