dis·in·gen·u·ous (dĭs’ĭn-jĕn‘yū-əs)
adj.

1. Not straightforward or candid; insincere or calculating: “an ambitious, disingenuous, philistine, and hypocritical operator, who … exemplified … the most disagreeable traits of his time” (David Cannadine).
2. Pretending to be unaware or unsophisticated; faux-naif.
3. Mike Krzyzewski: “I never look at talking to the referee as “working the ref.” I think that’s one of the worst phrases that could ever be made. I don’t think that’s what happens. What you’re trying to do is find out why something has been done or explain your situation. It’s not a matter of “working,” it’s a matter of explanation.” source
4. Usage Problem. Unaware or uninformed; naive.