Uningenuous is a word that describes someone who is insincere, dishonest or not straightforward. If you're looking for synonyms to replace this word, there are quite a few options. One synonym is disingenuous, which means the same thing. Other options include deceitful, duplicitous, false, fake, phony, insincere, and untrustworthy. If you want to use a more positive synonym, try using words like honest, forthright, sincere, or authentic. It's important to choose your words carefully when you're trying to convey a message or express your thoughts. By using synonyms for uningenuous, you can create a clearer picture of your intended meaning.