Improbabilities refer to events or situations that seem unlikely to occur. Synonyms for improbabilities include improbability, unlikelihood, long shot, fluke, outside chance, uncertainty, and chance occurrence. These words are often used to describe a situation where the odds of success are low or where the outcome is unpredictable. Additionally, other synonyms for improbabilities can include unexpectedness, surprise, anomaly, and aberration. These words can be used to describe a situation that goes against the norm or a prediction, making it unexpected or surprising. Regardless of the synonym used, improbabilities often represent a challenge and require extraordinary effort to overcome.