Synonym: barrier, block, catch, deterrent, hindrance, hitch, impediment, obstruction, snag, stoppage. Antonym: help. Similar words: spectacle, obstreperous, manacle, miracle, stack, substance, substantial, substantially. Meaning: ['ɑbstəkl /'ɒb-] 
n. 1. something immaterial that stands in the way and must be circumvented or surmounted 2. an obstruction that stands in the way (and must be removed or surmounted or circumvented).
n. 1. something immaterial that stands in the way and must be circumvented or surmounted 2. an obstruction that stands in the way (and must be removed or surmounted or circumvented). 
Random good picture Not show
31. This ambitious project faces a major legal obstacle.
32. The main obstacle now is the United Nations.
33. My biggest obstacle, though, was Syngman Rhee.
34. As we overcame obstacle after obstacle, our pride grew.
35. In this illustration your notepad is an obstacle.
36. Acheson replied that the obstacle was one of security.
37. Safety has been the main obstacle.
38. He hauled the crimson obstacle from her womb.
39. Too often, past social stratification forms an obstacle.
40. Cooling the water is the biggest obstacle.
41. A greater obstacle may be Clinton himself.
42. She is no ordinary political obstacle.
43. That condition remains the key obstacle.
44. It was like an obstacle race.
45. Although the company hopes for approval this month[sentencedict.com], Mr Rozells pointed out that the government shutdown presents an obstacle.
46. But the man was a romantic and probably saw Steve as an obstacle he might have to overcome.
47. The greatest obstacle to the progress of the Unity Campaign was the opposition of the Labour Party.
48. There are mazes, obstacle courses, visual recognition games, trial-and-error experiments, arcade-style shooting games.
49. The main obstacle was a battle-tested Houston team that never blinked, even after nearly blowing a 22-point lead.
50. The greatest obstacle to economic progress has been mass unemployment.
51. With fatigued muscles, we endured ruck marches, long runs and obstacle courses.
52. The difference in regional house prices acts as a major obstacle to mobility of labour.
53. However[sentencedict.com/obstacle.html], circling before the horse is presented at the obstacle is not penalised - unlike showjumping.
54. Agreeing operational requirements is the first and most tiresome obstacle.
55. The directive was simply another obstacle which had to be taken into account by the broadcasting authorities.
56. Here, some five hundred years ago, the river encountered an obstacle that caused it to split into two channels.
57. The next obstacle is just as tough: the $ 24 billion annual tax savings for charitable contributions.
58. Increasingly, Mr Kabila's duplicity and intransigence were seen by all as the chief obstacle to any such agreement.
59. The real obstacle to these programs is that the resources they require are limited by our political system.
60. Another major obstacle is the fair circuit and its impact on the higher quality stables.
More similar words: spectacle, obstreperous, manacle, miracle, stack, substance, substantial, substantially, a class, observe, observer, abstract, observation, abstinence, intact, attach, tackle, attack, tactic, get across, attach to, uncle, clerk, clear, cycle, cut across, put across, muscle, circle, clear up.