When pondering on incidents and events that fail to occur as anticipated, the phrase "not happen" often comes to mind. Nevertheless, numerous alternative synonyms exist for this expression, each expressing a slightly different take on the concept. Some potential options include "fail to materialize", emphasizing the absence of expected outcomes; "fall through", highlighting the disappointment or collapse of plans; "come to naught", underscoring the ultimate futility of expectations; "miss the mark", accentuating the deviation from desired results; and "unsuccessful", indicating the lack of success or achievement. Consequently, these synonyms offer an array of ways to convey the notion of something that does not transpire as planned.