If you're searching for alternatives to the word "suspenseful," there are plenty of options to choose from. One phrase you might consider is "heart-pounding," which suggests a sense of tension and excitement that leaves you on the edge of your seat. "Nerve-wracking" is another term that conveys a similar feeling of apprehension, while "gripping" implies that the story or situation being described is so compelling that it holds your attention and doesn't let go. Other possible synonyms for "suspenseful" include "thrilling," "harrowing," "intense," "dramatic," "absorbing," and "exhilarating." Whatever synonym you choose, it's sure to help you convey the sense of suspense and anticipation that you're looking to express.