The phrase "formidable director" is grammatically correct and can be used in written English.
Example: Despite facing numerous obstacles, the team was able to complete the project successfully under the leadership of their formidable director.
Wainstein said Brennan would make a "very formidable director of the CIA".
Phyllida Lloyd is a formidable director of opera and classic plays, although she is perhaps best known as the director of "Mamma Mia," the Abba musical, which opened in the West End, in 1999; she also directed the movie version, in 2007, with Meryl Streep.
Of all the formidable directors who have staged Mr. Sondheim's musicals, no one cuts closer to their heart than Mr. Doyle, a minimalist with a scalpel.
The formidable Russian director Andrei Zvyagintsev will be there with his Leviathan and from Mauritania, Abderrahmane Sissako will represents new African cinema with Timbuktu.
When I arrive on set, I am met by Capricorn, Bad Boy's formidable brand director, who assures me that the big man "knows that he owes you 45 minutes".
One of the best talkers about music in the business, and a formidable conductor to boot, is David Robertson, the music director of the St . Louis Symphony Orchestra
Since its founding in 1967 this group has been led by some formidable music directors, among them Charles Munch, Herbert von Karajan, Georg Solti and Christoph von Dohnanyi.
In April 2011, The Daily Mirror reported that Madonna -- sexually charged '80s popstar turned formidable performer, songwriter, director, author, businesswoman and philanthropist -- had been spied coming out of an Opus Dei building in London.
The formidable Finnish conductor Osmo Vänskä, who had been working wonders as Minnesota's music director, resigned on October 1st, after a yearlong labor dispute.
"JetBlue is really a formidable competitor," said Darryl Jenkins, director of the Aviation Institute at George Washington University.
"Margaret is a brilliant editor, and she's been a formidable competitor," Thomas J. Wallace, editorial director of Condé Nast, said in an interview.
