Nonusable is a synonym of unusable.
As adjectives the difference between unusable and nonusable
is that unusable is not usable while nonusable is not usable.
unusable
English
Adjective
(
en adjective)
Not usable.
- The toilet was unusable because it was blocked.
nonusable
English
Adjective
(-)
Not usable.
Synonyms
* unusable