What are the antonyms for RETROGRESS?

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Synonyms for RETROGRESS

Usage Examples for RETROGRESS

  1. But, as a matter of fact, there are species which are arrested; there are some that retrogress. - "Creative Evolution" by Henri Bergson
  2. A cool and observant spectator might have imagined that the broad timber carpet was changing a little its pattern, just as the earth near the windows of an arrested railroad train seems for a moment to retrogress. - "The Blazed Trail" by Stewart Edward White