Succussive is a word used to describe something that produces a sudden, sharp impact or shock. There are several synonyms that can be used to replace it in order to vary the language or provide a better description of the situation. Some of these synonyms include explosive, jarring, percussive, bursting, thundering, blasting, and thunderous. Each of these words conveys a different shade of meaning, from the sound of an explosion to the force of a sudden impact, and can be used to add variety and emphasis to a piece of writing or speech. Overall, these synonyms for succussive provide writers and speakers with a diverse palette of words that can be used to convey a wide range of sensations and emotions.