The phrase "a formidable enough" is correct and usable in written English.
It can be used to emphasize that something is sufficiently impressive or powerful.
Example: "The team faced a formidable enough opponent to challenge their skills."
Alternatives: "sufficiently formidable" or "impressively enough".
The Packers, however, very clearly did not have a formidable enough ground game to rely on.
The incumbent Reagan-Bush ticket presented a formidable enough challenge in and of itself, but Ms. Ferraro found herself on the defensive almost from the start, answering critics who questioned her qualifications for high office.
But he has also made a good living turning the cards himself, a formidable enough player to state that the game is only gambling if you're a poor player.
The Himalayas seemed a formidable-enough barrier, and Nepal's political and economic attention was oriented south toward India.
A really roomy, baggy foreskin, a foreskin formidable enough to encase a few pills, a baggie of MDMA and a pack of Rizzla.
She might be the manager of a modeling agency, but she is not the grand theatrical impresario of Genet's imagining, a woman formidable enough to take over a kingdom.
My feeling is that a power formidable enough to eclipse America would need global moral authority as well as skyscrapers, missiles and patriotism.
They hope that by melding their moneys they can forge a trading bloc formidable enough to compete with North America... Germans speak about the mark in startlingly intimate, anthropomorphic terms.
They hope that by melding their moneys they can forge a trading bloc formidable enough to compete with North America... Germans speak about the mark in startlingly intimate, anthropomorphic terms..
He undertook an extensive daily workout regime to enlarge his physique, wanting his character to appear as a "hunter" and to be formidable enough to present a credible threat to the protagonists.
Decades later, as Kelefa Sanneh wrote in a recent piece for The New Yorker, Cosby's influence remained formidable enough that a young Eddie Murphy felt compelled to call Pryor for advice when he learned that Cosby didn't like his use of profanity onstage.
