The phrase "breathlessly high" can be used to describe a variety of situations where excitement, anxiety or adrenaline give us a heightened sense of awareness. Some synonyms for this phrase include: euphoric, exhilarated, elated, ecstatic, thrilled, overjoyed, delirious, dizzy, frenzied, feverish, frenetic, hyperactive, manic, intense, and electrifying. These words all describe a sense of being fully invested in the present moment, with a racing heartbeat and rushes of adrenaline. Whether you're experiencing a thrilling adventure, receiving good news or winning a big game, there are many words to describe the feeling of being breathlessly high.