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obstacle

/ˈɒbstəkl̩/ · ob·sta·cle
noun
  1. Something that impedes, stands in the way of, or holds up progress. A big obstacle to understanding the manual was that it had been poorly translated from the Japanese.
  2. A physical or mental barrier that must be overcome. The obstacle course in the park included a series of challenging hurdles and walls to climb.
Did you know? The word 'obstacle' has been used in various contexts, including sports, where an obstacle course is a challenging series of physical barriers to be overcome.
Written by Lexi Wordsworth, Dictionary Editor 1 lookups Added Aug 2, 2026