Non event is a phrase used to describe something that did not happen or did not have the impact that was expected. There are many synonyms for non event, including disappointment, anticlimax, letdown, non-occurrence, failure, non-issue, and non-starter. These words are often used to describe situations where a hyped event or outcome was expected but did not materialize. Sometimes, non events can be positive, especially if they prevent a negative outcome. However, they can also be frustrating and leave people feeling like their time and energy have been wasted. In any case, having alternatives to non event can help express disappointment or dissatisfaction in a more specific way.