Merriam-Webster's Word of the Day for September 7, 2023 is:

disingenuous • \dis-in-JEN-yuh-wuss\  • adjective

Disingenuous is a formal word that describes things, such as speech or behavior, that give a false appearance of being honest or sincere. Similarly, a person who is being disingenuous may seem sincere, but is in fact only pretending to be open and candid.

// Her recent expressions of concern about the community center closing are disingenuous at best because she stands to benefit financially when the property is redeveloped.

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Examples:

“You know those one-line reviews on Amazon listings that don’t quite seem legitimate? Like the ones that rate a product five stars and say something incredibly vague, like “This is such a great item,” without expanding on any specifics? Well, that’s just one type of fake feedback that the FTC wants to crack down on. The FTC’s proposed rule seeks to ban several different types of disingenuous reviews and would not just punish the companies that use them but also the brokers that falsify feedback.” — Emma Roth, TheVerge.com, 30 June 2023

Did you know?

To be disingenuous is to feign sincerity—to pretend you are speaking genuinely and honestly while concealing an ulterior motive. Similarly, a disingenuous remark might contain a hint of truth, but it is delivered with the intent to deceive or to serve some hidden purpose. While not currently defined in our dictionary, the internet term sealioning might also shed some light on the meaning of disingenuous, especially if you’ve ever been dragged into an online argument with a stranger whose true purpose is to exhaust you and erode your goodwill. As media critic Anita Sarkeesian wrote for Marie Claire magazine, “Sealioning is when an uninvited stranger pops into your conversation and peppers you with unsolicited and insincere questions. The sealion politely demands evidence for even the most mundane or self-evident statements and insists that you justify your opinions until he’s satisfied—which he never is, since he’s asking questions in bad faith.” In other words: textbook disingenuous behavior.