"Move reflexively" is a phrase that is often used to describe an innate or involuntary reaction to a stimulus. Synonyms for this phrase include "react," "respond," "jerk," "flinch," and "spasm." Each word has a slightly different connotation, but they all describe an involuntary movement. "React" and "respond" imply a more deliberate or thoughtful action, while "jerk," "flinch," and "spasm" suggest a sudden and forceful movement. These synonyms can be useful in writing to convey a specific tone or emotion, depending on the situation being described. By exploring different words with similar meanings, writers can add depth and nuance to their descriptions of character actions.