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unused

[uhn-yoozd for 1, 2; uhn-yoost for 3] /ʌnˈyuzd for 1, 2; ʌnˈyust for 3/
adjective
1.
not used; not put to use:
an unused room.
2.
never having been used:
an unused postage stamp.
3.
not accustomed:
unused to cold winters.
Origin of unused
1250-1300
1250-1300; Middle English; see un-1, used
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for unused

unused

adjective
1.
(ʌnˈjuːzd). not being or never having been made use of
2.
(ʌnˈjuːst), (postpositive) foll by to. not accustomed or used (to something)
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
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Word Origin and History for unused
adj.

c.1300, "unaccustomed," from un- (1) "not" + past participle of use (v.). Meaning "not employed" is recorded from late 14c.

Online Etymology Dictionary, © 2010 Douglas Harper
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7
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