Nominal Forms
Infinitive: to undo
Participle: undone
Gerund: undoing
Indicative
Present
| I | undo |
| you | undo |
| he;she;it | undoes |
| we | undo |
| you | undo |
| they | undo |
Perfect
| I | have undone |
| you | have undone |
| he;she;it | has undone |
| we | have undone |
| you | have undone |
| they | have undone |
Past
| I | undid |
| you | undid |
| he;she;it | undid |
| we | undid |
| you | undid |
| they | undid |
Pluperfect
| 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 |
Subjunctive
Present
| I | undo |
| you | undo |
| he;she;it | undo |
| we | undo |
| you | undo |
| they | undo |
Perfect
| I | have undone |
| you | have undone |
| he;she;it | have undone |
| we | have undone |
| you | have undone |
| they | have undone |
Imperfect
| I | undid |
| you | undid |
| he;she;it | undid |
| we | undid |
| you | undid |
| they | undid |
Pluperfect
| I | had undone |
| you | had undone |
| he;she;it | had undone |
| we | had undone |
| you | had undone |
| they | had undone |
Conditional
Present
| I | would undo |
| you | would undo |
| he;she;it | would undo |
| we | would undo |
| you | would undo |
| they | would undo |
Perfect
| 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 |
Imperative
| you | undo |
| we | Let's undo |
| you | undo |
Verbs similar to 'undo'
undog,
ado,
and,
bunco,
bund,
bunko,
cund,
dado,
do,
end,
Synonyms & Antonyms
Synonyms
- reverse effects
- cancel, reverse
- unfasten
- unbuckle, unbutton, untie, unzip
- delete
- cancel, omit, efface, erase, expunge, obliterate
Antonyms
- reverse effects
- redo
- unfasten
- button, button up, do up, tie up, zip, zip up
- to utter or do a second time or many times
- reiterate
Additional Information
Phrasal Verbs
Etymology
1. O.E.
undon "to unfasten and open" (a window or door), "to unfasten by releasing from a fixed position," from un- (2) + do.
Undone "not accomplished" is recorded from c.1300; sense of "destroyed" is recorded from 1340; the notion is of "to annul something that was done."
Undoing "action of bringing to ruin" is recorded from 1398.
2. From Middle English undōn, from Old English ondōn, from Proto-West Germanic *andadōn (“to undo”), equivalent to un- + do. Cognate with West Frisian ûndwaan, ûntdwaan (“to undo; rid”), Dutch ontdoen (“to undo”). See: Dutch '
ontdoen'.
Verbs referencing "undo"
Welsh
andwyo.
Sample Sentences
-
“ O, nonsense ! I want her mine, that I may have a right to take her to the free States, and give her her liberty, that all I am trying to do be not undone. ”
(Uncle Tom’s Cabin)
-
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. The light of the lamp fell full on the face; and Tom gave a wild cry of [...]
(Uncle Tom’s Cabin)