Heart-thrilling is a term that describes a deeply emotional or exciting experience. There are several synonyms for the word "heart-thrilling" that can be used to convey similar meanings. Some common synonyms include "exhilarating," "thrilling," "exciting," "rousing," "stimulating," "electrifying," "breath-taking," "mind-blowing," "enchanting," and "enthusing." These words can be used to describe a range of experiences, from an exciting adventure to an emotional moment of love or inspiration. Whatever the context may be, these synonyms for heart-thrilling will help to convey the intensity of the experience, and the emotional impact it has left on the speaker.