Dictionary.com
definitions
  • synonyms

usable

or use·a·ble

[yoo-zuh-buh l]
See more synonyms for usable on Thesaurus.com
adjective
  1. available or convenient for use: 2000 square feet of usable office space.
  2. capable of being used: That saw is no longer usable.
Show More

Origin of usable

1350–1400; Middle English < Middle French; see use, -able
Related formsus·a·bil·i·ty, us·a·ble·ness, nounuse·a·bil·i·ty, use·a·ble·ness, nounus·a·bly, use·a·bly, adverbnon·re·us·a·ble, non·re·use·a·ble, adjective, nounnon·us·a·ble, non·use·a·ble, adjectivere·us·a·bil·i·ty, re·use·a·bil·i·ty, nounre·us·a·ble, re·use·a·ble, adjectivere·us·a·ble·ness, re·use·a·ble·ness, nounun·us·a·ble, un·use·a·ble, adjectiveun·us·a·ble·ness, un·use·a·ble·ness, nounun·us·a·bly, un·use·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unusable

Contemporary Examples

Historical Examples


British Dictionary definitions for unusable

unusable

adjective
  1. not able or fit to be used
Show More

usable

useable

adjective
  1. able to be used
Show More
Derived Formsusability, useability, usableness or useableness, nounusably or useably, adverb
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

Word Origin and History for unusable

adj.

1825, from un- (1) "not" + usable.

Show More

usable

adj.

late 14c., from Old French usable (early 14c.), from user (see use). Not a common word before c.1840. Related: Usably.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper