frankly
$ \mathrm{frankly} /ˈfræŋkli/
1 in an honest and direct way that people might not like
He spoke frankly about the ordeal.
They frankly admitted their responsibility.
2 used to show that you are being honest about something, even though people might not like what you are saying
Frankly, I couldn't care less what happens to him.
Quite frankly, I'm not surprised you failed.
e.g.