Word family noun event non-event eventuality uneventfulness adjective eventful ≠ uneventful eventual adverb eventfully ≠ uneventfully eventually 
From Longman Dictionary of Contemporary Englishnon-eventˌnon-eˈvent noun [countable usually singular]  DISAPPOINTEDan event that is disappointing because it is much less interesting, exciting, or important than you expected In the end, the match turned out to be a non-event.Examples from the Corpus
non-event• Carver's testimony turned out to be a non-event. 
