What is the Italian translation of 'Happy 50th anniversary'?

Felice quinto anniversario is an Italian equivalent of the English phrase "Happy fifth anniversary."

Specifically, the feminine/masculine adjective felicemeans "happy." The masculine adjective quinto means "fifth (5th)." The masculine noun anniversario means "anniversary."

The pronunciation is "feh-LEE-tcheh AHN-nee-vehr-SAH-ryoh."