Source : Webster's Revised Unabridged Dictionary (1913)

Eventful \E*vent"ful\a.
   Full of, or rich in, events or incidents; as, an eventful
   journey; an eventful period of history; an eventful period of
   life.

Source : WordNet®

eventful
     adj 1: full of events or incidents; "the most exhausting and
            eventful day of my life" [ant: {uneventful}]
     2: having important issues or results; "the year's only really
        consequential legislation"; "an eventful decision" [syn: {consequential}]