Unusable Definition
ŭn-yo͝ozə-bəl
adjective
That cannot be used.
Unusable byproducts.
American Heritage
Not fit for use.
Unusable files on corrupted disks.
American Heritage
Not usable.
The toilet was unusable because it was blocked.
Wiktionary
Origin of Unusable
-
un- +"Ž usable
From Wiktionary
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