unusable

adjective

un·​us·​able ˌən-ˈyü-zə-bəl 

: not capable of being used or fit for use : not usable

unusable documentary footage

The lavatory, totally unusable, was full of snow which had blasted in through the keyhole.

—Katharine Sim

unusably

ˌən-ˈyü-zə-blē 

adverb

Synonyms of unusable

• useless
• impractical
• unsuitable

Examples of unusable in a Sentence

a completely unusable gadget that's just taking up space in the drawer

Recent Examples on the Web

Ready said the ball relies on stadium infrastructure to communicate with officials, making the electronics virtually unusable outside a World Cup venue. — ABC News, 8 July 2026

These extreme weather changes can cause pavement to expand, crack and warp, rendering some roads unusable until they are repaired. — Brittney Melton, NPR, 7 July 2026

Future generations opening the capsule in 2276 will likely find the device unusable due to several factors. — Ewan Spence, Forbes.com, 6 July 2026

The rain had rendered the dirt tracks we were meant to use … um, unusable. — New Atlas, 6 July 2026

Word History

First Known Use

1825, in the meaning defined above

Rhymes for unusable

• fusible
• usable
• diffusible
• excusable
• infusible
• reusable
• inexcusable