Non events, also known as non-occurrences, refer to situations or events that do not take place as expected. There are several synonyms that can be used to describe a non event, including failures, disappointments, letdowns, anticlimaxes, and non-starters. Other possible synonyms could include non-achievements, non-incidents, non-happenings, non-appearances, and non-fulfillments. Whatever term you use, it is important to remember that a non event does not necessarily represent a negative outcome, but rather a situation in which something that was anticipated or expected does not come to fruition. Understanding the various synonyms for non events can help in effectively conveying a situation in both spoken and written communication.