This is the 467th most frequent German word.
erfolgreich
Successful.
In this sentence, the word 'erfolgreich' functions as an adjective modifying 'Geschäftsmann,' indicating someone who has achieved notable success.
Er ist ein erfolgreicher Geschäftsmann.
He is a successful businessman.
Here, 'erfolgreich' is used as an adverb describing how she completed the project, emphasizing the positive result.
Sie hat das Projekt erfolgreich abgeschlossen.
She successfully completed the project.
In this context, 'erfolgreich' serves as an adjective describing the noun 'Abschluss,' illustrating an achievement.