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unbound

[uhn-bound] /ʌnˈbaʊnd/
verb
1.
simple past tense and past participle of unbind.
adjective
2.
not bound, as a book.
3.
free; not attached, as by a chemical bond:
unbound electrons.
Origin of unbound
900
before 900; (adj.) Middle English unbounde, unbunden, Old English unbunden; see un-1, bound1
Can be confused
unbound, unbounded.

unbind

[uhn-bahynd] /ʌnˈbaɪnd/
verb (used with object), unbound, unbinding.
1.
to release from bonds or restraint, as a prisoner; free.
2.
to unfasten or loose, as a bond or tie.
Origin
before 950; Middle English unbinden, Old English unbindan; cognate with German entbinden. See un-2, bind
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for unbound
Contemporary Examples
Historical Examples
  • The prisoners, now unbound, washed and happy, were seated in the place of honor on each side of the chief.

    Captain Jinks, Hero Ernest Crosby
  • Another of the men shared a similar fate, and another; and then they unbound me.

    The Scalp Hunters Mayne Reid
  • Tom unbound his hand, and the youthful Æsculapius gazed at it with great interest.

  • On this the Captain-Major ordered him to be unbound, and becomingly dressed.

    Notable Voyagers W.H.G. Kingston and Henry Frith
  • Had not a towel been but now unbound from the hair shining here under his glance in luxuriant brown coils?

    Dr. Sevier George W. Cable
  • How had he unbound his fastenings—who had furnished him with the knife?

    The White Chief Mayne Reid
  • They unbound and supported him; one of them threw over his shoulders his woollen tunic.

  • He unbound his crimson silk cloth and whisked it about in the water to wash it.

British Dictionary definitions for unbound

unbound

/ʌnˈbaʊnd/
verb
1.
the past tense and past participle of unbind
adjective
2.
(of a book) not bound within a cover
3.
not restrained or tied down by bonds
4.
(of a morpheme) able to form a word by itself; free

unbind

/ʌnˈbaɪnd/
verb (transitive) -binds, -binding, -bound
1.
to set free from restraining bonds or chains; release
2.
to unfasten or make loose (a bond, tie, etc)
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 unbound

unbind

v.

Old English unbindan, "to free from binding," from un- (2) + bind (v.). Cf. German entbinden, Dutch ontbinden. Literal and figurative senses both present in Old English.

Suæ huæt ðu unbindes ofer eorðu bið unbunden in heofnum. [Lindisfarne Gospels, Matt. xvi:19]
Unbound is from Old English unbunden, in literal sense. Figurative sense first attested late 14c.; of books from 1540s.

Online Etymology Dictionary, © 2010 Douglas Harper
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