Unusable
ʌnˈjuːzəbl
Synonyms
- impracticable
- ineffective
- unfit
- inoperable
- nonfunctional
Slang Meanings
Throwing in the towel
When the car broke down again, I felt like throwing in the towel on it being usable.
A lost cause
The project turned into a lost cause; it was totally unusable.