Our search was 'successful'. [=we found what we were searching for]
a 'successful' movie [=a movie that makes a large profit]
We have 'successfully' finished the project.
(..) is singing about it! You can hear him up there! Can he carry a tune, Hal? Okay, boys, okay. Now, what in the hell happened? An execution. A successful one. How in the name of Christ can you call that a success? Eduard Delacroix is dead. Isn't he? Percy... (..)1999 The Green Mile