When looking for synonyms for "more idiot proof," several options can be considered. Some possible alternatives might include "simpler," "easier," "foolproof," "user-friendly," and "idiot-resistant." Another option could be to use a phrase such as "easy to use and understand" or "designed for beginners." Consider the context in which the term will be used, and select a synonym that accurately conveys the desired meaning. Whether describing software, equipment, or instructions, using language that is accessible to a wide range of individuals is always a wise choice.