Word.ws English Dictionary

undoer

undoer is the agent noun of undo.

Meaning of undo

Noun

undo (plural undos)

  1. (transitive) An operation that reverses a previous action.
    • How many undos does this program support?

See all 5 meanings of undo

Forms of undoer

pluralundoers

Origin of undoer

From Middle English undoer, ondoare, equivalent to undo + -er.

Questions about undoer

What is undoer the agent noun of?
Undoer is the agent noun of undo.

Words near undoer in the dictionary

  1. undocuqueers
  2. undodgeable
  3. undodged
  4. undodgy
  5. undoed
  6. undoer
  7. undoers
  8. undoes
  9. undoest
  10. undoeth
  11. UNDOF

Source and license

Adapted from Wiktionary: undoer (page history and authors); undo (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “undoer.” Word.ws, https://word.ws/undoer. Based on Wiktionary, CC BY-SA 4.0.