/ ˈɒbstəkl; NAmE ˈɑːb-/ noun
1.
obstacle (to sth / to doing sth) a situation, an event, etc. that makes it difficult for you to do or achieve sth
SYN hindrance :
A lack of qualifications can be a major obstacle to finding a job.
So far, we have managed to overcome all the obstacles that have been placed in our path.
2.
an object that is in your way and that makes it difficult for you to move forward :
The area was full of streams and bogs and other natural obstacles.
3.
( in showjumping ) a fence, etc. for a horse to jump over
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WORD ORIGIN
Middle English : via Old French from Latin obstaculum , from obstare impede, from ob- against + stare stand.