verb (used with object)

to free from or as if from chains; set free.

Origin of unchain

First recorded in 1575–85; un-2 + chain
Related formsun·chain·a·ble, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for unchain


verb (tr)

to remove a chain or chains from
to set at liberty; make free
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 unchain

1580s, from un- (2) "opposite of" + chain (v.). Figurative sense of "to liberate" is recorded from 1793. Related: Unchained; unchaining.

Online Etymology Dictionary, © 2010 Douglas Harper