Powerful adjectives

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Across
  1. 5. Extremaly large, huge(areas, expanses)
  2. 7. Very painful
  3. 9. Silly
  4. 10. Extremaly large
Down
  1. 1. Something silly what has very low level of intelligance
  2. 2. Very surprising
  3. 3. Remarks that are intended to make someone or something seem stupid
  4. 4. Surprisingly large or impressive
  5. 6. Imposible to believe or be serious about something because it is so silly
  6. 8. Unusually large