The expression 'undeniably charming' is correct and usable in written English.
You can use this expression to describe something that is undeniably appealing. For example, "The cottage was small but undeniably charming."
But all the supporting characters, even the undeniably charming "Dutch," come second to Oscar and the magic he finds in a series of sprawling model-train landscapes.
The best place to while away some time, though, is in the 42nd Street Passage, home to the nauseatingly colorful but undeniably charming gift shop Pylones.
As the titular fish out of water in the family-friendly sitcom The Fresh Prince of Bel-Air, Will Smith was undeniably charming, but his presence didn't exactly scream out "future biggest movie star in the world".
Hands Across the Table (1935) established a template Leisen would use repeatedly in other romantic comedies: a strong independent woman cannot prevent herself from falling in love with a man who is undeniably charming but does not bring much else to the table.
And, yet, the town's Soviet rust is undeniably charming.
Really undeniably charming and charismatic but not super-effective if you think about it in the long-term Presidents.
Charming, charming, charming" by NPR.
Here Ali was, a converted Muslim who openly embraced black separatism with a undeniably singular voice, charming and colloquial, his radicalism tinged with quick rhymes and an indefatigable smile.
Today, this 800-acre wooded estate is a charming and undeniably romantic retreat, with a seasonal pool and candlelit gourmet restaurant.
Writer Stacy McKee described Izzie's moving on from Alex to patient Denny Duquette as "karma", as Alex previously treated Izzie badly, yet as he begins to realize his true feelings, he is forced to watch her embark on a romance with Denny, regarded by her as "undeniably handsome and totally charming".
To go for a guy like that is to say I want to be damaged.'" Writer Stacy McKee deemed Izzie's moving on from Alex to patient Denny Duquette "karma", as Alex previously treated Izzie badly, yet as he begins to realize his true feelings, he is forced to watch her embark on a romance with "the undeniably handsome - and totally charming" Denny.
