The word overnumerous refers to something that is excessive or too many in number. There are several synonyms for this word that can be used to convey the same meaning, including numerous, abundant, plentiful, copious, excessive, and superfluous. These words all imply an excess or an abundance of something, whether it is objects, characters, or ideas. Using synonyms can help to add variety to your writing and avoid repetition. So, instead of overusing the word overnumerous, you can easily find other words that convey the same meaning and add more depth to your content.