- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for undoable
This trait ennobles the U.S. military, but also makes it highly vulnerable to taking on undoable tasks.Obama's Afghan Nightmare
Leslie H. Gelb
June 16, 2010
The dirty fist in the young surgeon's pocket was obliged to undoable itself, and come out of its ambush disarmed.The History of Pendennis
William Makepeace Thackeray
- (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
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 undoable
Online Etymology Dictionary, © 2010 Douglas Harper