Similar words: feel like doing, do in, undo, run down, round off, sound off, undoubtedly, ongoing. Meaning: [‚ʌn'duː] 
n. 1. an act that makes a previous act of no effect (as if not done) 2. loosening the ties that fasten something.
n. 1. an act that makes a previous act of no effect (as if not done) 2. loosening the ties that fasten something. 
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1. By stopping smoking you are undoing most of the damage smoking has caused.
2. She has invented a nifty little gadget for undoing stubborn nuts and bolts.
3. This hard attitude may have led to his undoing.
4. Greed has been the undoing of many a businessman.
5. In the end,(http://sentencedict.com) drink was his undoing.
6. The new president spent the first year undoing the work of his predecessor.
7. Drink was his undoing.
8. I could see him above me undoing his belt.
9. Two large side panels, which are removed by undoing two knots, cover each side of the engine compartment.
10. Muffin galloped to the door and started undoing the bolts with her teeth.
11. Such confidence was to be their undoing, and that of the Elves.
12. The knots took some undoing and then finally an impatient Adam tore off the string before slowly removing the muslin.
13. Top weight and soft ground proved his undoing but he ran an absolute cracker to finish third to Sibton Abbey.
14. This was only undoing her newly formed resolution to hate him.
15. She was repeatedly doing up and undoing the bottom button of her black cardigan.
16. This simple experiment was not undoing the clock; it was undoing civilization.
17. Her privileged position now proved her undoing.
18. She may be the key to Triton's undoing.
19. That one mistake was his undoing.
20. But China's seemingly unassailable position has been its undoing.
21. His lack of experience may prove to be his undoing.
22. You can detach the handle of the saucepan by undoing this screw.
23. Internal dissension as much as military repression was to prove the rebels' undoing in 1699.
24. Clough has always marched to a different tune[sentencedict.com], but this time his perversity may finally be his undoing.
25. Estall has made a serious mistake that could prove his undoing.
26. It seems to me that the Cabinet has an obsessively self-protective herd instinct which could be its undoing.
27. If you fall into this trap, it will be your own doing - and your undoing.
28. It was just another Tuesday at the office as the businesslike Braves discussed their undoing.
29. It was not until March in 1782 that the brothers made the error that was the beginning of their undoing.
30. Like Samson, the secret of her strength was her undoing.
More similar words: feel like doing, do in, undo, run down, round off, sound off, undoubtedly, ongoing, adjoining, funding, underlying, undertaking, surrounding, founding father, misunderstanding, round and round, mudslinging, living thing, ringing, coin, join, joint, point, go into, enjoin, anoint, go in for, join in, points, candor.