undone

¹ American  

[uhn-duhn] / ʌnˈdʌn /

adjective

1. not done; not accomplished or completed.

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undone ² American  

[uhn-duhn] / ʌnˈdʌn /

verb

1. past participle of undo.

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adjective

1. brought to destruction or ruin.

2. unfastened.

undone ¹ British  

/ ʌnˈdʌn /

adjective

1. ruined; destroyed

2. unfastened; untied

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undone ² British  

/ ʌnˈdʌn /

adjective

1. not done or completed; unfinished

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Etymology

Origin of undone¹

First recorded in 1250–1300; un- ¹ ( def. ) + done ( def. )

Origin of undone²

First recorded in 1300–50, for the adjective; un- ² ( def. ) + done ( def. )

Example Sentences

And once the transfer to a private lender has been made, it can’t be undone.

From MarketWatch • May 15, 2026

Recent movies have presented death as something that can be undone.

From The Wall Street Journal • May 14, 2026

Those Celtic, Motherwell and Hearts games in particular have undone the progress made previously under Rohl this term.

From BBC • May 5, 2026

Sawe had targeted the world record in Berlin last September, before that bid was undone by the hot weather.

From BBC • Apr. 26, 2026

My entrance had undone his work of appeasing Laertes, and his face twitched with the effort of repressing his anger.

From "Ophelia" by Lisa Klein