noun a person or thing that is not able to be used or accessed
adjective describing something that cannot be used or accessed
The dilapidated building was considered unusable for occupancy.
The expired medication was deemed unusable.
The software update rendered the app unusable.
The broken machinery was deemed unusable for production.
The contaminated soil was declared unusable for farming.
The defective product was labeled unusable and recalled.
The writer found the draft to be unusable due to numerous grammatical errors.
The psychologist deemed the test results unusable due to inconsistencies in the data collection process.
The software engineer discovered that the code was unusable because of a major bug that caused frequent crashes.
The graphic designer declared the file format to be unusable for printing purposes.