unusable

This term describes a state of total failure or inadequacy, where an object or piece of information cannot fulfill its intended function. It carries a definitive tone of finality, suggesting that the item is not merely difficult to use, but completely devoid of utility in its current state.

In technical or professional contexts, it often refers to data or evidence that is corrupted or invalid, rendering it void for analysis. This differs from "broken," which implies physical damage, as "unusable" can apply to abstract concepts like software code, legal testimony, or digital files.