1. radical change
  2. break with the past
  3. major change
  4. quantum jump
  5. quantum leap
  6. revolutionary change
  7. sudden change
  8. upheaval
  9. marked transformation
  10. total change
  11. conversion
  12. metamorphosis
  13. transfiguration
  14. transformation

Words Related to Sea-change

Related words are words that are directly connected to each other through their meaning, even if they are not synonyms or antonyms. This connection may be general or specific, or the words may appear frequently together.