post, anti, auto prefixes

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Across
  1. 4. Something that happens without help from a living thing.
  2. 5. The opposite of clockwise.
  3. 8. being shy, unwilling or unable to be social.
  4. 11. A ruler who has all power.
  5. 12. A liquid that belongs in a radiator.
  6. 13. A type of disease
  7. 14. A date that you will send a letter on.
Down
  1. 1. A large display normally on paper and can also be called a banner.
  2. 2. I went to the post office to send a __________ to my aunt.
  3. 3. To end or hold back an event.
  4. 6. Someone who does not portray hero like characteristics.
  5. 7. can be a postcard.
  6. 8. A self governing state.
  7. 9. A medicine for poison.
  8. 10. A person's signature.