undo


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undo

reverse or erase; annul; untie; unwrap: undo a knot
Not to be confused with:
undue – exceeding the appropriate or normal; excessive: the use of undue force
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

undo

(ʌnˈduː)
vb (mainly tr) ,-does,-doing,-didor-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
unˈdoern
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

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
Collins English Verb Tables © HarperCollins Publishers 2011
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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

undo

verb
2.reverse,cancel,offset,wipe out,neutralize,invalidate,annul,nullifyIt 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 naughtTheir hopes of a victory were undone by a goal from John Barnes.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

undo

verb
1.To remove or invalidate by or as if by running a line through or wiping clean:
annul,blot (out),cancel,cross (offor out),delete,efface,erase,expunge,obliterate,rub (out),scratch (out),strike (out),wipe (out),x (out).
Law:vacate.
3.To become or cause to become open:
5.To lessen or deplete the nerve, energy, or strength of:
6.To lure or persuade into a sexual relationship or a sexual act:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

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'ilgagnait, ilréduirait ànéant tout ce pour quoi j'aicombattu.
(COMPUTING) →annuler l'actionprécédente
undo typing →annuler lafrappe
can't undo →impossible d'annuler
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

undo

pret <undid>,ptp <undone>
vt
(= unfasten) →aufmachen;button, dress, zip, parcel →aufmachen,öffnen;knot →lösen;knitting →aufziehen;sewing →auftrennen;will youundo me?(inf) →kannst du mir denReißverschluss/dieKnöpfeetc aufmachen?
(= reverse)mischief, wrong →ungeschehenmachen;work →zunichtemachen,ruinieren;decision →rückgängigmachen; (Comput: command) →rückgängigmachen;we cannotundo the past →wir können dieVergangenheitnichtungeschehenmachen
vi →aufgehen
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

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
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

undo

(anˈduː) –past tenseunˈdid (-ˈdid):past participleunˈdone (-ˈdan) – verb
1. to unfasten or untie.Could you undo the knot in this string? losmaak يَحُل، يَفُك развързвам desfazer rozvázataufmachen løsneλύνω,ξεκουμπώνωdeshacer lahti tegema باز کردن؛ شکافتن avatadéfaire לְהַתִיר खोलना odvezati kibont membuka losa umdisfare ほどく 풀다 išnarplioti, atrišti, atsegti attaisīt; atraisīt membukalosmakenknappe opp,åpne,ta opprozwiązać خلاصول، بيرته كول، پرانيستل سستول: بې اغيزې كول، ردول، باطلول، ړنګول، ورانول desfazer a desfaceразвязывать rozviazať odvezati, odpeti odvezati knyta (knäppa) upp, lossa เปิด; ปลดçözmek,açmak 鬆開，解開 розв'язувати; розстібати کھولنا tháo, gỡ, cởi 松开，解开
2. to reverse, or destroy, the effect of.The evil that he did can never be undone. omkeer يُبْطِل، يُلْغي развалям desfazer odčinitungeschehen machen lade ugjort επαναφέρω σε προγενέστερη κατάσταση, αντιστρέφω γεγονός,επανορθώνωdeshacer;reparar olematuks tegema جبران کردن؛ خنثی کردن tehdä tekemättömäksidéfaire לַהֲרוֹס, לְקַלקֵל मिटा देना poništiti meg nem történtté tesz membatalkan ógilda, afturkalladistruggere,annullare 元にもどす 파멸시키다 atitaisyti likvidēt; atsaukt menarik balikongedaan makengjøre om,oppheve,ødeleggenaprawić بيرته كول desfazer a anula не воротишь назад odčiniť popraviti poništiti göra ogjord, gottgöra ทำลาย etkisini ortadan kaldırmak 扭轉或消弭…的影響 вернути واپس لينا، مٹانا xóa bỏ, phá hủy扭转或破坏…的影响
unˈdoing noun
(the cause of) ruin or disaster.Gambling was his undoing. ondergang دَمار، كارِثَه погубване ruína zkáza das Verderben ruinκαταστροφήruina hukatus علت نابودی؛ فنا tuhoperte הַגוֹרֵם לַחוּרבָּן उलट-पुलट, बरबादी, नाश propast, uništenje romlás kehancuran eyðilegging, fallrovina 破滅 파멸 pražūtis posts; bojāeja punca kemusnahanondergang ulykke,undergang,ødeleggelse zguba له منځه وړنه، باطلونه، ړنګونه، تباهيruína distrugere погибель skaza poguba propast fördärv, olycka, undergång ความหายนะ mahvolma nedeni 毀滅(的原因) напасть تباہي، بربادي sự làm hư hỏng, đồi trụy毁灭
unˈdone (-ˈdan) adjective
(of work, a tasketc) not done, or not finished.I don't like going to bed leaving jobs/work undone. onopgemaak, onklaargemaak غَيْر مَعْمول незавършен incompleto nedodělanýunerledigt ugjortατελείωτος, ανολοκλήρωτοςinacabado, por hacer,sin hacer tegemata انجام نشده؛ به پایان نرسیده tekemätön pas fait;inachevé לא גָמוּר असंपादित nedovršen el nem végzett belum diselesaikan ófullgerður (non terminato) 未完成の 미완성의 nepadarytas, neužbaigtas nepadarīts; nepaveikts tdk menyiapkanongedaan, onafgemaaktugjort,uferdig nie zrobiony, nie dokończony تر سره نه رسيدلى por fazer nefăcut; neterminatнезаконченный nedokončený nedokončan nedovršen ogjord ซึ่งยังกระทำไม่สำเร็จ bitmemiş, yapılmamış (工作等)未完成的 незроблений, незакінчений نامکمل، ناقص chưa kết thúc, chưa hoàn thành未完成的
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

undo

→يَفُكُّ rozepnout åbneaufmachenξεκουμπώνωdeshacer aukaistadéfaire otkopčatidisfare ほどく 원상태로 돌리다losmakenåpneodpiąćdesfazerотменять göra ogjord แก้açmak hủy松开
Multilingual Translator © HarperCollins Publishers 2009

undo

vt. deshacer, desatar; desabrochar, desbaratar.
English-Spanish Medical Dictionary © Farlex 2012


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"But the real usefulness of this magic power," I thought, "would be toundo some harm, some painful event, some accident--"
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Which one might notundo without a sabre, If one could merely comprehend the plot.
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