disingenuously

he disingenuously claimed that he was unaware of the situation.

she smiled disingenuously while hiding her true feelings.

the politician disingenuously promised to lower taxes.

he disingenuously apologized for his actions.

she disingenuously feigned ignorance about the rules.

they disingenuously argued that their product was the best.

the employee disingenuously insisted he had completed the project.

he disingenuously downplayed the seriousness of the issue.

she disingenuously complimented her colleague to gain favor.

they disingenuously denied any wrongdoing.