Antonyms for the word "most coinciding" are words that mean not matching or not coinciding. Some possible antonyms for "most coinciding" are "discordant," "inconsistent," "differing," "diverging," and "opposite." For example, a person's account of an event might differ greatly from someone else's, showing that their recollections are inconsistent. Alternatively, two people might have opposing opinions about a topic, indicating that they have opposite beliefs. When something is discordant, it lacks harmony or agreement, such as a musical chord that sounds jarring or out of tune. Similarly, diverging means moving in different directions, away from each other, as lines that don't intersect.