Antonyms for undo

Grammar : Verb

Spell : uhn-doo

Phonetic Transcription : ʌnˈdu

Definition of undo

Origin : Old English undon "to unfasten and open" (a window or door), "to unfasten by releasing from a fixed position," from un- (2) + do (v.). The notion is of "to annul something that was done." Related: Undone; undoing.

verb open
verb nullify, invalidate

Example sentences :

Come, captain, undo these ropes, and make up your mind quickly.
Extract from : « In the Midst of Alarms » by Robert Barr

Come down, and undo the shop window, that I may get in that way.'
Extract from : « Barnaby Rudge » by Charles Dickens

If a man can do whatever he thinks of—can he undo that which he has done?
Extract from : « Now We Are Three » by Joe L. Hensley

No; but to go on as if hard work now can ever undo what years of idleness have done.
Extract from : « The First Violin » by Jessie Fothergill

And, if I haply had erred, to undo the wrong, and release you.
Extract from : « Poems » by William D. Howells

I must find this subtle poison which was strong enough to undo the elixir.
Extract from : « The Captain of the Pole-Star and Other Tales » by Arthur Conan Doyle

You set out to undo the effects of his libel and to punish him for his outrage.
Extract from : « The Eternal City » by Hall Caine

Then it would be too late to refuse and too late to undo what had been done.
Extract from : « The Rise of Roscoe Paine » by Joseph C. Lincoln

Naught more had been needed to undo me than this spur of jealousy.
Extract from : « The Strolling Saint » by Raphael Sabatini

But, come, be quick and undo this, and I 'll tell you all about it.'
Extract from : « Arthur O'Leary » by Charles James Lever

Synonyms for undo

Based on : Thesaurus.com - Gutenberg.org - Dictionary.com - Random House Unabridged Dictionary, © Random House, Inc. 2019