undoing — OET

undoing

noun

1 she was constantly plotting the king's undoing:

downfall, defeat, conquest, vanquishing, toppling, deposition, ousting, unseating, overthrow, ruin, ruination, destruction, annihilation, elimination, end, collapse, failure, loss of power, debasement;

nemesis, Waterloo;

rare labefaction.

▷antonyms betterment, preferment.

2 their complacency was to be their undoing:

fatal flaw, Achilles heel, weakness, weak point/spot, (soft) underbelly, failing, blight, misfortune, affliction, trouble, curse.

▷antonyms making.

undoing Oxford Dictionary of English