What Is The Difference Between Regrettably And Regretfully?

What Is The Difference Between Regrettably And Regretfully? Regrettably is used when something’s a bummer, but it’s not necessarily your fault. Regretfully is when you’re full of regret, like if you decided to stay home and your friends saw your crush at the dance. What a regrettably meaning? —used to say that something is disappointing