The phrase "adrenaline buzz" refers to the intense feeling of excitement and energy that occurs when the hormone adrenaline is released into the body. When searching for synonyms for this phrase, some alternatives include "thrill," "excitement," "rush," "kick," "jolt," "buzz," "high," and "charge." Each term points to a sense of intense and exhilarating physical and emotional responses and the feeling of being fully alive. Whether you're skydiving or winning an athletic competition, the common thread is the release of adrenaline and the resulting "buzz" that makes you feel alive and energized.