undo
verb (used with object)
to reverse the doing of; cause to be as if never done.
will have undone
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future perfectof undo.future perfect
Used to describe an action that will be fully completed or achieved by a specific point in the future.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"Let me have that copy in an hour, and notary Goupil will have undone some of the evil deeds of Goupil the clerk."
From Ursula by Katharine Prescott Wormeley
