- the act of opening, untying, etc.
- a reversal of the doing of something done or accomplished; canceling or annulling
- the act of bringing to ruin, disgrace, or destruction
- the cause or source of ruin, disgrace, or destruction
Present participle of undo.
- The act of unfastening or loosening.
- a. Ruin; destruction.b. The act of bringing to ruin.c. A cause or source of ruin; downfall: Greed was his undoing.
- The act of reversing or annulling something accomplished; a cancellation.
- That which defeats.
- His fatal flaw was his undoing. In a sense he defeated himself.
- Present participle of undo.
Variant of undo
transitive verbundid, undone, undoing
- to release or untie (a fastening)
- to open (a parcel, door, etc.) by this means
- to reverse the doing of (something accomplished); do away with; cancel; annul
- to put an end to; bring to ruin, disgrace, or downfall
- to upset emotionally; perturb
- Obsolete to interpret; explain
Origin of undoMiddle English undon ; from Old English ; from un-, un- + don, to do