adjective (a)

• large or relatively large in number or amount or extent or degree

  besar atau relatif besar jumlah keluasan nomor atau atau atau darjah

  Example:
  A considerable quantity.
  The economy was a considerable issue in the campaign.
  Went to considerable trouble for us.
  Spent a considerable amount of time on the problem.
  

  Antonym:
  inconsiderable
  

  source: wordnet30
• Worthy of consideration; requiring to be observed, borne in mind, or attended to.

  layak untuk pertimbangan; membutuhkan harus diawasi, yang ada dalam pikiran, atau diperhatikan.

  source: webster1913