Joltingly is a word used to describe something that causes a sudden shock or surprise. There are a number of synonyms for this word that can better convey its meaning, including abruptly, suddenly, unexpectedly, shockingly, or startlingly. Each of these words can be used in place of joltingly to describe something that is surprising or catches you off guard. Other options include suddenly, unexpectedly, or shockingly, depending on the context of the sentence. Overall, there are many ways to describe a jolting experience, and the right synonym will help convey just how unexpected the experience was.