The antonyms for the word "more undiscoverable" would be "easily noticeable," "prominent," "detectable," "visible," and "apparent." These words suggest the opposite of something that is difficult or impossible to find, uncover or detect. Something that is easily noticeable, prominent, detectable, visible or apparent can be easily spotted or found without much effort. Therefore, the antonyms for the word "more undiscoverable" offer a clear contrast and can be used to describe things that are easily visible, known, and accessible. This is important when trying to communicate information clearly and effectively.