The instruction manual was unuseful, leaving everyone confused.

Despite her careful planning, she couldn't deny the unusefulness of the outdated manual in solving modern problems.

After the flood, most of the electronics were unusable.

The lab technician labelled the unused vials and returned them to cold storage.

The old theater fell into unuse after the new cinema opened downtown.

The unusability of the new software frustrated the entire team.

After the severe storm, many of the hiking trails were unusably waterlogged, forcing us to turn back.

She was unused to the spicy food of the region, so she ate cautiously at every meal.

The unusableness of the old software frustrated the entire team during the product launch.

She gestured unusefully toward the torn map, hoping someone would understand her meaning.