Ungradable adjectives

12345678910
Across
  1. 4. Utterly unable to be heard
  2. 5. Totally intolerable
  3. 6. Completely filled with joy and excitement
  4. 7. Absolutely impossible to believe
  5. 10. Utterly without hope or possibility
Down
  1. 1. Totally unable to be seen
  2. 2. Absolutely perfect
  3. 3. Totally lacking any sense of direction
  4. 8. Completely unreasonable or illogical
  5. 9. Absolutely horrifying