The antonyms for the word "in saner" are "sane," "reasonable," "logical," "sensible," "clearheaded," "wise," and "balanced." These words represent a state of mind that is not confused or disorganized, but rather focused and clear. When describing someone as "in saner," it implies that they are not thinking straight or are experiencing some sort of delusion. Using antonyms such as "sane" or "logical" can emphasize the importance of rational thought and decision-making in daily life, and the need to avoid confusion and irrationality. Overall, using antonyms can help to clarify the meaning of a word and expand one's vocabulary.