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to undo

to undo

22 5.4
Destroy the success of a person or thing
  • verb
  • /ʌnˈdu/
translation icon : arruinar
  • Ulster Unionists saw Home Rule as a conspiracy, a conspiracy to undo the Ulster plantation - and that was something which could not be allowed.
  • tried to undo
  • threatens to undo
  • attempt to undo

The special affairs staff was the component of the CIA who had been trying to kill Castro and UN basically undo his regime for years.

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Examples

  • I mean to undo the flaws in my character.

  • Do not open this door or you will undo everything I've worked for.

  • The first phase is undo the damage of the last four years.

  • Toward the end of his life, a man seeks to undo the damage he has caused.

    Fiction book (1996)
  • Killing this one individual might well prevent the war and undo the whole course of disasters that followed.

    Fiction book (2000)
  • In most former communist countries, the collapse of the system did not undo the lives of party officials.

    Academic text (2008)
  • And when something shows up that threatens to undo all of those things, well then it's really easy to avoid it.

  • White conservatives had led "the most comprehensive effort to undo Reconstruction" in the South.

    Academic text (2011)
  • Gingrich promised to undo the legacy of the 1960s by eliminating the Great Society programs.

    Academic text (1994)
  • The scandal threatened to undo the politician's career completely.

Synonyms

to ruin
vsto undo
2.0

Destroy or badly damage something so it cannot be used

targets causing a downfall of a person or thing
to unmake
vsto undo
5 7.5

To undo or destroy something created earlier

aims to cause a downfall rather than simply reverse a creation

Antonyms

1.0

Give help to a person or idea

207 3.0

Increase slowly over time

How Damaging

to destroy
1.0
to undo
22 5.4
to ruin
2.0
to damage
885 1.4
to harm
738 1.0

Surface Forms

undo infinitive
undoing present participle
undoes third person singular
undid past
undone past participle

Morphology

undo = do (semi-transparent) = un + do

The form is 'un-' + 'do', but the meaning 'to ruin or cause downfall' is a figurative/extensions from 'undo' and not a straightforward negative reversal for learners.

Etymology

Undo also once had a stronger sense: un- ('not') plus do could mean 'make not done' or destroy. So to be undone can mean to be ruined or brought down by something like a serious mistake.