Thunderhead

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Across
  1. 2. varied, not in harmony
  2. 3. quarantine or separation, starts with an i
  3. 5. there is not yet either a vaccine or a _____ for COVID-19 (hint: first letter is R)
  4. 6. dull, flat, toneless, boring, tedious
  5. 7. intention or desire to do evil, last 4 letters spell "lice"
  6. 9. thought about, first part sounds like a small body of water
Down
  1. 1. noun, a feeling of being content, starts with s
  2. 4. criticize or mock, the sound of it is similar to another word for "silly"
  3. 5. it keeps something under control, first letter is r, last letter is t
  4. 8. Having every assignment on the same website is much more _______