noun (n)

• something immaterial that stands in the way and must be circumvented or surmounted

  sesuatu yang tidak penting yang berdiri di jalan dan harus circumvented atau surmounted

  Example:
  Lack of imagination is an obstacle to one's advancement.
  The poverty of a district is an obstacle to good education.
  

  Synonym:
  obstruction
  

  source: wordnet30
• an obstruction that stands in the way (and must be removed or surmounted or circumvented)

  obstruksi yang berdiri di jalan (dan mesti dikeluarkan atau surmounted atau circumvented)

  source: wordnet30
• That which stands in the way, or opposes; anything that hinders progress; a hindrance; an obstruction, physical or moral.

  yang berdiri di jalan, atau opposes; apapun yang hinders kemajuan; sebuah hambatan; obstruksi, fizikal atau moral.

  source: webster1913