undo

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, -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

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

Collins English Verb Tables © HarperCollins Publishers 2011

Thesaurus

Verb	1.	undo - 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 characteristics   unmake destroy, destruct - do away with, cause the destruction or undoing of; "The fire destroyed the house"
	3.	undo - 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 loose; "undo the shoelace"; "untie the knot"; "loosen the necktie" untie, loosen 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 of; "Let's unwrap the gifts!"; "undo the parcel" unwrap 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

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.

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 (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:

disengage, loose, loosen, slip, unbind, unclasp, unfasten, unloose, unloosen, untie.

3. To become or cause to become open:

open, unclose.

4. To cause the complete ruin or wreckage of:

bankrupt, break down, cross up, demolish, destroy, finish, ruin, shatter, sink, smash, spoil, torpedo, wash up, wrack, wreck.

Slang: total.

Idiom: put the kibosh on.

5. To lessen or deplete the nerve, energy, or strength of:

attenuate, debilitate, devitalize, enervate, enfeeble, sap, undermine, unnerve, weaken.

6. To lure or persuade into a sexual relationship or a sexual act:

debauch, seduce.

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

aufmachenungeschehen machen

ξεκουμπώνω

abrirdesatardeshacer

aukaista

défaire

otkopčati

meg nem történtté tesz

losa umógilda, afturkalla

disfareslacciare

ほどく

원상태로 돌리다

atraisītatsauktattaisītlikvidēt

losmaken

åpne

odpiąć

desfazer

отстёгиватьотменять

odčiniť

odpetiodvezatiodvitirazvezati

göra ogjord

แก้

açmakçözmeketkisini ortadan kaldırmak

hủy

松开解开扭转或破坏…的影响

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'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

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 you undo me? (inf) → kannst du mir den Reißverschluss/die Knöpfe etc aufmachen?

(= reverse) mischief, wrong → ungeschehen machen; work → zunichtemachen, ruinieren; decision → rückgängig machen; (Comput: command) → rückgängig machen; we cannot undo the past → wir können die Vergangenheit nicht ungeschehen machen

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 tense unˈdid (-ˈdid) : past participle unˈdone (-ˈdan) – verb

1. to unfasten or untie. Could you undo the knot in this string? losmaak يَحُل، يَفُك развързвам desfazer rozvázat aufmachen løsne λύνω, ξεκουμπώνωdeshacer lahti tegema باز کردن؛ شکافتن avata défaire לְהַתִיר खोलना odvezati kibont membuka losa um disfare ほどく 풀다 išnarplioti, atrišti, atsegti attaisīt; atraisīt membuka losmakenknappe opp, åpne, ta opprozwiązać خلاصول، بيرته كول، پرانيستل سستول: بې اغيزې كول، ردول، باطلول، ړنګول، ورانول desfazer a desface развязывать rozviazať odvezati, odpeti odvezati knyta (knäppa) upp, lossa เปิด; ปลด çözmek, 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 odčinit ungeschehen machen lade ugjort επαναφέρω σε προγενέστερη κατάσταση, αντιστρέφω γεγονός, επανορθώνωdeshacer; reparar olematuks tegema جبران کردن؛ خنثی کردن tehdä tekemättömäksi défaire לַהֲרוֹס, לְקַלקֵל मिटा देना poništiti meg nem történtté tesz membatalkan ógilda, afturkalla distruggere, annullare 元にもどす 파멸시키다 atitaisyti likvidēt; atsaukt menarik balik ongedaan 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 ruin καταστροφήruina hukatus علت نابودی؛ فنا tuho perte הַגוֹרֵם לַחוּרבָּן उलट-पुलट, बरबादी, नाश propast, uništenje romlás kehancuran eyðilegging, fall rovina 破滅 파멸 pražūtis posts; bojāeja punca kemusnahan ondergang ulykke, undergang, ødeleggelse zguba له منځه وړنه، باطلونه، ړنګونه، تباهي ruína 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 task etc) not done, or not finished. I don't like going to bed leaving jobs/work undone. onopgemaak, onklaargemaak غَيْر مَعْمول незавършен incompleto nedodělaný unerledigt ugjort ατελείωτος, ανολοκλήρωτος inacabado, 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 menyiapkan ongedaan, onafgemaakt ugjort, uferdig nie zrobiony, nie dokończony تر سره نه رسيدلى por fazer nefăcut; neterminat незаконченный 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 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

Multilingual Translator © HarperCollins Publishers 2009

undo

vt. deshacer, desatar; desabrochar, desbaratar.

English-Spanish Medical Dictionary © Farlex 2012