SERIES

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Across
  1. 4. Soothing
  2. 5. Calming
  3. 6. Uninteresting
  4. 7. Dull
  5. 9. Unengaging
Down
  1. 1. Comforting
  2. 2. Boring
  3. 3. Reassuring
  4. 8. Indifferent