run into a stone wall

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run into a stone wall

Fig. to come to a barrier against further progress. We've run into a stone wall in our investigation. Algebra was hard for Tom, but he really ran into a stone wall with geometry.
See also: run, stone, wall

run into a stone wall

Also, run into a brick wall. Encounter an insurmountable barrier to progress, as in We tried to get faster approval from the town and ran into a stone wall, or For Allan, learning a foreign language amounted to running into a brick wall.
See also: run, stone, wall