undo


Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.

un·do

 (ŭn-do͞o′)
v. un·did (-dĭd′), un·done (-dŭn′), un·do·ing (-do͞o′ĭng), un·does (-dŭz′)
v.tr.
1. To reverse or erase; annul: impossible to undo the suffering caused by the war.
2. To untie, disassemble, or loosen: undo a shoelace.
3. To open (a parcel, for example); unwrap.
4.
a. To cause the ruin or downfall of; destroy.
b. To throw into confusion; unsettle.
v.intr.
To come open or unfastened.

un·do′er n.

undo

(ʌnˈduː)
vb (mainly tr) , -does, -doing, -did or -done
1. (also intr) to untie, unwrap, or open or become untied, unwrapped, etc
2. to reverse the effects of
3. to cause the downfall of
4. obsolete to explain or solve
unˈdoer n

un•do

(ʌnˈdu)

v.t. -did, -done, -do•ing.
1. to reverse the doing of.
2. to repair or erase: to undo the damage.
3. to bring to ruin; destroy.
4. to unfasten or unlatch.
5. to untie.
[before 900]
un•do′a•ble, adj.

undo


Past participle: undone
Gerund: undoing

Imperative
undo
undo
Present
I undo
you undo
he/she/it undoes
we undo
you undo
they undo
Preterite
I undid
you undid
he/she/it undid
we undid
you undid
they undid
Present Continuous
I am undoing
you are undoing
he/she/it is undoing
we are undoing
you are undoing
they are undoing
Present Perfect
I have undone
you have undone
he/she/it has undone
we have undone
you have undone
they have undone
Past Continuous
I was undoing
you were undoing
he/she/it was undoing
we were undoing
you were undoing
they were undoing
Past Perfect
I had undone
you had undone
he/she/it had undone
we had undone
you had undone
they had undone
Future
I will undo
you will undo
he/she/it will undo
we will undo
you will undo
they will undo
Future Perfect
I will have undone
you will have undone
he/she/it will have undone
we will have undone
you will have undone
they will have undone
Future Continuous
I will be undoing
you will be undoing
he/she/it will be undoing
we will be undoing
you will be undoing
they will be undoing
Present Perfect Continuous
I have been undoing
you have been undoing
he/she/it has been undoing
we have been undoing
you have been undoing
they have been undoing
Future Perfect Continuous
I will have been undoing
you will have been undoing
he/she/it will have been undoing
we will have been undoing
you will have been undoing
they will have been undoing
Past Perfect Continuous
I had been undoing
you had been undoing
he/she/it had been undoing
we had been undoing
you had been undoing
they had been undoing
Conditional
I would undo
you would undo
he/she/it would undo
we would undo
you would undo
they would undo
Past Conditional
I would have undone
you would have undone
he/she/it would have undone
we would have undone
you would have undone
they would have undone
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.undo - cancel, annul, or reverse an action or its effectundo - cancel, annul, or reverse an action or its effect; "I wish I could undo my actions"
change by reversal, reverse, turn - change to the contrary; "The trend was reversed"; "the tides turned against him"; "public opinion turned when it was revealed that the president had an affair with a White House intern"
unbrace, unlace, untie - undo the ties of; "They untied the prisoner"
unstrap - remove the strap or straps from
unhitch - unfasten or release from or as if from a hitch
unpick - undo (the stitches) of (a piece of sewing)
unfasten - cause to become undone; "unfasten your belt"
unbelt - undo the belt of; "unbelt your trousers"
unstaple - take the staples off; "unstaple the piece of paper from the receipt"
unclip - remove the clip from
unbutton - undo the buttons of; "unbutton the shirt"
unpin - remove the pins from; unfasten the pins of
disconnect, unplug - pull the plug of (electrical appliances) and render inoperable; "unplug the hair dryer after using it"
unbraid - undo the braids of; "unbraid my hair"
unknot, unpick, unravel, unscramble, untangle - become or cause to become undone by separating the fibers or threads of; "unravel the thread"
unwind, disentangle - separate the tangles of
unbuckle - undo the buckle of; "Unbuckle your seat belt"
spread, unfold, open, spread out - spread out or open from a closed or folded state; "open the map"; "spread your arms"
unwire - undo the wiring of
2.undo - deprive of certain characteristicsundo - deprive of certain characteristics  
destroy, destruct - do away with, cause the destruction or undoing of; "The fire destroyed the house"
3.undo - cause the ruin or downfall ofundo - cause the ruin or downfall of; "A single mistake undid the President and he had to resign"
ruin - destroy or cause to fail; "This behavior will ruin your chances of winning the election"
4.undo - cause to become looseundo - cause to become loose; "undo the shoelace"; "untie the knot"; "loosen the necktie"
alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
5.undo - remove the outer cover or wrapping ofundo - remove the outer cover or wrapping of; "Let's unwrap the gifts!"; "undo the parcel"
uncover, expose - remove all or part of one's clothes to show one's body; "uncover your belly"; "The man exposed himself in the subway"

undo

verb
1. open, unfasten, loose, loosen, unlock, unwrap, untie, disengage, unbutton, disentangle, unstrap, unclasp I managed to undo a corner of the parcel.
2. reverse, cancel, offset, wipe out, neutralize, invalidate, annul, nullify It would be difficult to undo the damage that had been done.
3. ruin, defeat, destroy, wreck, shatter, upset, mar, undermine, overturn, quash, subvert, bring to naught Their hopes of a victory were undone by a goal from John Barnes.

undo

verb
1. To remove or invalidate by or as if by running a line through or wiping clean:
annul, blot (out), cancel, cross (off or out), delete, efface, erase, expunge, obliterate, rub (out), scratch (out), strike (out), wipe (out), x (out).
Law: vacate.
2. To free from ties or fasteners:
3. To become or cause to become open:
4. To cause the complete ruin or wreckage of:
Slang: total.
5. To lessen or deplete the nerve, energy, or strength of:
6. To lure or persuade into a sexual relationship or a sexual act:
Translations
يُبْطِل، يُلْغييَحُل، يَفُكيَفُكُّ
odčinitrozepnoutrozvázat
åbnelade ugjortløsne
aukaista
otkopčati
meg nem történtté tesz
losa umógilda, afturkalla
ほどく
원상태로 돌리다
atraisītatsauktattaisītlikvidēt
odčiniť
odpetiodvezatiodvitirazvezati
göra ogjord
แก้
açmakçözmeketkisini ortadan kaldırmak
hủy

undo

[ˈʌnˈduː] (undid (pt) (undone (pp))) VT
1. (= unfasten) [+ button, blouse] → desabrochar; [+ knot, parcel, shoe laces] → desatar; [+ zipper] → abrir; (= take to pieces) → desarmar
2. (= reverse) → deshacer; [+ damage etc] → reparar; [+ arrangement etc] → anular
3. (Comput) [+ command] → cancelar

undo

[ˌʌnˈduː] [undid] [ˌʌnˈdɪd] (pt) [undone] (pp) vt
(= unfasten) [+ knot, zip, buttons, bra, jacket, shirt, parcel] → défaire
(= reverse effects of) [+ good work] → réduire à néant; [+ damage] → réparer
If he won, he would undo everything I have fought for → S'il gagnait, il réduirait à néant tout ce pour quoi j'ai combattu.
(COMPUTING)annuler l'action précédente
undo typing → annuler la frappe
can't undo → impossible d'annuler

undo

pret <undid>, ptp <undone>
vt
(= unfasten)aufmachen; button, dress, zip, parcelaufmachen, öffnen; knotlösen; knittingaufziehen; sewingauftrennen; will you undo me? (inf)kannst du mir den Reißverschluss/die Knöpfe etc aufmachen?
(= reverse) mischief, wrongungeschehen machen; workzunichtemachen, ruinieren; decisionrückgängig machen; (Comput: command) → rückgängig machen; we cannot undo the pastwir können die Vergangenheit nicht ungeschehen machen
viaufgehen

undo

[ʌnˈduː] (undid (pt) (undone (pp))) vt
a. (unfasten, button) → sbottonare; (shoelaces) → slacciare; (knot) → sciogliere; (parcel) → aprire; (knitting) → disfare
b. (reverse, action, wrong) → riparare (a); (spoil) → rovinare

undo

(anˈduː) past tense unˈdid (-ˈdid) : past participle unˈdone (-ˈdan) verb
1. to unfasten or untie. Could you undo the knot in this string?
2. to reverse, or destroy, the effect of. The evil that he did can never be undone.
unˈdoing noun
(the cause of) ruin or disaster. Gambling was his undoing.
unˈdone (-ˈdan) adjective
(of work, a task etc) not done, or not finished. I don't like going to bed leaving jobs/work undone.

undo

يَفُكُّ rozepnout åbne aufmachen ξεκουμπώνω deshacer aukaista défaire otkopčati disfare ほどく 원상태로 돌리다 losmaken åpne odpiąć desfazer отменять göra ogjord แก้ açmak hủy 松开

undo

vt. deshacer, desatar; desabrochar, desbaratar.
References in classic literature ?
Undo the bundle and see, Meg," said Beth, eying the knobby parcel with curiosity.
There was something about it that quickened an instinctive curiosity, and made me undo the faded red tape that tied up the package, with the sense that a treasure would here be brought to light.
The horror of it drove him mad; he stretched out his arms to heaven, crying out for deliverance from it--and there was no deliverance, there was no power even in heaven that could undo the past.
He hastened to undo it; and, with smothered voices and heavy tread, came several men, bringing a body, wrapped in a cloak, and lying on a shutter.
I could then undo the lumbering padlocks with which our chains were fastened, whenever I might choose.
When Tom had had enough, he would slip out and tie knots in Chamber's shirt, dip the knots in the water and make them hard to undo, then dress himself and sit by and laugh while the naked shiverer tugged at the stubborn knots with his teeth.
Tom, you didn't have to undo your shirt collar where I sewed it, to pump on your head, did you?
And now undo my bundle, Joe,' said the first woman.
Nothing can undo it; nothing can make it otherwise than as it was.
No wisdom on earth could have given me the comfort that I should have derived from their simplicity and fidelity; but I could never, never, undo what I had done.
Nor can I think that God, Creator wise, Though threatning, will in earnest so destroy Us his prime Creatures, dignifi'd so high, Set over all his Works, which in our Fall, For us created, needs with us must faile, Dependent made; so God shall uncreate, Be frustrate, do, undo, and labour loose, Not well conceav'd of God, who though his Power Creation could repeate, yet would be loath Us to abolish, least the Adversary Triumph and say; Fickle their State whom God Most Favors, who can please him long?
She began to undo the chain, and Agatha helped with the bolts.