Important; momentous: an eventful decision. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "eventful" in a sentence
"After what he describes as "eventful" races in 2007 and 2009 at the Nurburgring Hamilton knows it is pointless attempting to second guess how he might fare this weekend."
"It gives us some delineations of bygone manners and social changes, glimpses of many more or less notable persons, and above all the record of a life which, without being in the usual sense of these terms eventful or distinguished, stands forth as one in a great degree self-determined and bearing a strong impress of individuality."
"He saw Magdaléna alone for a moment before the others came downstairs, and his delight at meeting her again was so boyish that she could hardly have recalled his eventful forty years had she tried."