English to English

noun (n)

• someone who systematically obstructs some action that others want to take

  seseorang yang sistematis obstructs beberapa tindakan yang lain ingin mengambil

  Synonym:
  obstructer, obstructionist, resister, thwarter
  

  source: wordnet30
• any structure that makes progress difficult

  ada struktur itu sulit membuat kemajuan

  Synonym:
  impediment, impedimenta, obstructer, obstruction
  

  source: wordnet30