Dictionary.com
Thesaurus.com
Synonyms

unusable

British  
/ ʌnˈjuːzəbəl /

adjective

  1. not able or fit to be used

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

One U.S. study found that about one-fourth of exported plastic scrap was unusable, and half of that was badly managed.

From The Wall Street Journal ● Oct. 7, 2026

One worst-case fear is that debris could set off a chain reaction of crashes, leaving parts of low-Earth orbit unusable.

From The Wall Street Journal ● Aug. 30, 2026

Currently, most vaccines need to be refrigerated or frozen - but around half are wasted each year, mainly because they become unusable after getting too hot or too cold.

From BBC ● Aug. 5, 2026

The researchers determined that almost all images captured by the largest camera ever built -- part of the new Vera C. Rubin Observatory in Chile -- would be rendered unusable.

From Barron's ● Jul. 1, 2026

Having rendered Rover 1 unusable, I'll have to use my mutant rover for the trip.

From "The Martian" by Andy Weir

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember new words for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com