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

Zverev was also undone in last year's Australian Open final by Sinner, who produced a merciless performance which led to the German saying he felt mentally "empty" a few months later.

From BBC • Jun. 5, 2026

What if some of the mental decline linked to aging could actually be undone?

From Science Daily • May 26, 2026

To be sure, Congress can create new private property or contract rights that cannot be undone later because they are shielded by other parts of the Constitution.

From Slate • May 26, 2026

Those efforts were quickly undone by his comments to the press that same day.

From The Wall Street Journal • May 20, 2026

And Reggie's man bun came undone, and he appeared to be crying.

From "Millionaires for the Month" by Stacey McAnulty