The antonyms for the word "more well-taught" can be "ill-informed," "ignorant," "uneducated," "uninformed," or "untrained." These words are used to describe individuals who lack knowledge and skill in a particular subject or field. Being ill-informed or ignorant can result in making poor decisions, while being untrained can lead to mistakes and accidents. Therefore, to succeed in any field or profession, it is essential to stay informed, educated, and trained in the latest advancements and developments. This will help individuals to remain competitive, confident, and capable of handling the challenges and demands of the ever-changing world.