Suffix -less Bronze

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Across
  1. 4. not paying close attention; not careful or watchful
  2. 5. not knowing what to do
  3. 6. using or requiring little attention or thought
Down
  1. 1. perfectly clean
  2. 2. unable to do anything to help yourself or anyone else
  3. 3. not in pain
  4. 7. lasts forever