verb (undoes, undoing; past undid; past participle undone)[with object]
- 1Unfasten, untie, or loosen (something): the knot was difficult to undoMore example sentences
unfasten, unbutton, unhook, untie, unlace; unbind, unfetter, unshackle, unmanacle, unbridle, unlock, unbolt, uncouple, unhitch, unlink, loosen, loose, disentangle, disentwine, extricate, release, detach, free, set free, liberate, open, unseal, unwrap, let out; disconnect, disjoin, disengage, disunite, separate
- She noticed that not one of the men had loosened his tie and undone the top shirt button.
- It was with a sense of the inevitable that I undid the ribbons, loosened the neck and let it slip down over my arms to the ground.
- He had already slung his jacket and hat on to his bed and now he loosened his tie and undid the top two buttons of his dress shirt.
- 2Cancel or reverse the effects or results of (a previous action or measure): there wasn’t any way Evelyn could undo the damageMore example sentences
revoke, overrule, overturn, repeal, rescind, reverse, retract, take back, rule against, disallow, veto, countermand, cancel, annul, nullify, render null and void, invalidate, render invalid, negate, abrogate, disestablish, make ineffective, set aside, do away with, wipe out, bring to an end; Law avoid, vacate• archaic recall• rare disannul
- The Democrats are strongly opposed to the measures that undo many of the agreements that were struck during the original diesel package in 1999.
- But this time, it has more to do with rectifying or even undoing some of the damage that resulted from the last international economic movement.
- Their work may be undone as a result of the popular will.
- 2.1Cancel (the last command executed by a computer): you can frequently undo the error if you notice it in timeMore example sentences
- These range from nice functions like undoing and redoing a command, running spellcheck and printing a document.
- Repeating the u command undoes each step in turn; the Ctrl-R keystroke puts them back (redo).
- We undo the Ctrl-J with Ctrl-Shift - (that's Control-Shift-Hyphen) and type in the semicolon.
- 3 • formal Cause the downfall or ruin of: Iago’s hatred of women undoes himMore example sentences
ruin, undermine, put an end to, put at risk, subvert, overturn, topple, scupper, scotch, sabotage, spoil, mess up, make a mess of, quash, squelch, crush, harm, cripple, impair, mar, destroy, devastate, play havoc with, wreck, smash, shatter, annihilate, eradicate, obliterate, defeat; cancel out, neutralize, render ineffective; thwart, upset, foil, frustrate, hamper, hinder, obstructBritish • informal cock up, throw a spanner in the works ofNorth American • informal rain on someone's parade, throw a monkey wrench in the works of• archaic bring to naught
- The Minstermen were neat and tidy in possession but, as has been the case on so many occasions this season, were undone by their final ball.
- Perhaps all those rejections and ringing phones had undone him.
- He was undone by a limited imagination and a moment of genius.
nounComputing Back to top
- A feature of a computer program that allows a user to cancel or reverse the last command executed: [as modifier]: the undo commandMore example sentences
- However Dreamweaver has really gone to town on this feature making it extremely easy to use, it allows users a virtually unlimited number of number of undos.
- And the time they save in avoiding undos is invaluable.
- Graphic designers love to hear that they can revert to any previous version of a document by using the undo feature in the web-based management interface.