The antonyms for the word "more credential" could include "less qualified," "untrained," "inexperienced," "unverified," or "unaccredited." Each of these options highlights a lack of credibility, experience, or proficiency that is essential for obtaining more credentials. These antonyms signify a lack of education, knowledge, or expertise, and can indicate a person who may not be the best suited for a particular role or job. While more credentials generally lead to increased opportunities and career success, the opposite is true for those who lack credentials or experience. Choosing the right antonym for the context is critical to convey the intended meaning clearly.