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come up against

Encounter, especially an obstacle or problem. For example, I've never come up against anything I can't handle, or Dealing with Malcolm is like coming up against a brick wall.

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.