The word "experient" doesn't have a direct antonym. However, there are several words that can be used to provide an opposite meaning to it. Some of these antonyms include inexperienced, naive, unfamiliar, unskilled, unpracticed, untrained, and unschooled. While experient refers to having experience and knowledge in a particular field or area, its antonyms indicate a lack of experience or ignorance. It is worth noting that the choice of antonym will depend on the context in which experient is used, and a different word may be more appropriate in different situations.