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come unstuck

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come unstuck

to start to fail after some progress had been achieved His plans for the company came unstuck when there wasn't enough money to buy new machinery. Their deal seems to have come unstuck.

See also: come, unstuck

come unstuck

  (British & Australian)

if a person or something they are trying to achieve comes unstuck, they have problems which cause them to fail Athletes who don't prepare properly for the humid conditions will certainly come unstuck. The negotiations came unstuck over disagreements about the wording.

See also: come, unstuck