Disingenuous

[ dis-in-jen-yoo-uhs ]

adjective

1. not candid or sincere, typically by pretending that one knows less about something than one really does.

Examples of disingenuous in a sentence:

• The pharmaceutical manufacturer was clearly disingenuous when it knowingly placed the dangerous drug on the market.  
• While Jamie’s request for forgiveness seemed sincere, it really was the most disingenuous apology I had ever heard.