When searching for synonyms for the phrase "most jaunting," there are a variety of options available to choose from. Some possible alternatives to describe this feeling might include terms such as "jarring," "unsettling," or "disruptive." Other similar words might include "disorienting," "dizzying," or "discombobulating," each of which conveys a sense of being thrown off-balance or feeling unsteady. Alternatively, one might choose words such as "stimulating," "exhilarating," or "thrilling" to describe a similar sensation. Ultimately, the choice of synonym will depend on the context in which the word is being used and the specific connotations that the writer wishes to convey.