Synonyms for Eventful:

adj.

active (adjective)
lively.
significant, busy (adjective)
active, memorable, important, signal, lively, full, exciting, consequential.

n.

compelling, enthralling, dramatic, exciting, fast, exotic, thrilling, alive, exhilarating. eventful (noun)
lively, of import, consequential, important.
momentous (noun)
memorable, signal, active, full.

Other synonyms:

exhilarating, thrilling, dramatic, exciting. active. fast. historic
memorable.
Other relevant words:
alive, exhilarating, exciting, fast, signal, memorable, thrilling, active, full.

Usage examples for eventful

  1. He closeted himself with Ambler Appleyard and told him all the details of the eventful morning, and the manager listened in silence, taking everything in and making his own mental notes. – The Rayner-Slade Amalgamation by J. S. Fletcher
  2. But it was not until many months after their marriage that she confessed to him on that eventful night she thought she had seen in a moment of great peril the vision of the dead face of her husband uplifted to her through the water. – Openings in the Old Trail by Bret Harte
  3. A more eventful was to follow. – Story of the Session of the California Legislature of 1909 by Franklin Hichborn