undoing

[uhn-doo-ing]

noun

the reversing of what has been done; annulling.
a bringing to destruction, ruin, or disaster.
a cause of destruction or ruin.
the act of unfastening or loosing.
Psychiatry. an unconscious defense mechanism through which an attempt is made to reverse a psychologically unacceptable act by doing its opposite, usually repetitiously, in order to relieve anxiety.

Nearby words

  1. undivided,
  2. undivided profits,
  3. undo,
  4. undock,
  5. undocumented,
  6. undomesticated,
  7. undone,
  8. undouble,
  9. undoubtable,
  10. undoubted

Origin of undoing

Middle English word dating back to 1300–50; see origin at undo, -ing1

Related formsself-un·do·ing, adjective

undo

[uhn-doo]

verb (used with object), un·did, un·done, un·do·ing.

to reverse the doing of; cause to be as if never done: Murder once done can never be undone.
to do away with; erase; efface: to undo the havoc done by the storm.
to bring to ruin or disaster; destroy: In the end his lies undid him.
to unfasten by releasing: to undo a gate; to undo a button.
to untie or loose (a knot, rope, etc.).
to open (a package, wrapping, etc.).
Archaic. to explain; interpret.

Origin of undo

before 900; Middle English; Old English undōn; cognate with Dutch ontdoen. See un-2, do1

Related formsun·do·a·ble, adjective

Can be confusedundo undue

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for undoing


British Dictionary definitions for undoing

undoing

noun

ruin; downfall
the cause of downfalldrink was his undoing

undo

verb -does, -doing, -did or -done (mainly tr)

(also intr) to untie, unwrap, or open or become untied, unwrapped, etc
to reverse the effects of
to cause the downfall of
obsolete to explain or solve
Derived Formsundoer, noun

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 undoing

undo

v.

Old English undon "to unfasten and open" (a window or door), "to unfasten by releasing from a fixed position," from un- (2) + do (v.). The notion is of "to annul something that was done." Related: Undone; undoing.

Online Etymology Dictionary, © 2010 Douglas Harper