All usable antonyms
us·a·ble
U u adjective usable
- nonfunctional — Not having any particular purpose or function.
- dud — a device, person, or enterprise that proves to be a failure.
adj usable
- counterproductive — Something that is counterproductive achieves the opposite result from the one that you want to achieve.
- in-effective — not effective; not producing results; ineffectual: ineffective efforts; ineffective remedies.