The phrase "a truly superb" is correct and usable in written English.
It can be used to emphasize the exceptional quality of something, often in a positive review or description.
Example: "The restaurant served a truly superb meal that left us all impressed."
Alternatives: "an exceptionally great" or "a genuinely outstanding".
Daddies is a truly superb sauce.
In the second act he rose to the full height of a truly superb situation.
And it very well might be, if a truly superb production had not been given this film.
But close we got and, if not for Flintoff, who is a truly superb athlete, we probably would have got there.
Entertainment Weekly writer Ken Tucker wrote, "I loved this episode for... its careful layering and expansion of the series' key themes, and for the way it's setting us up for a truly superb, universe-shaking episode when Fringe returns Dec. 2".
If need be, Pandit can always cry himself to sleep at night at the $17.9 million Upper West Side apartment he bought from Tony Randall in 2007, a "truly superb residence" in its own right, according to the real-estate listing, next to the rolling grounds of Central Park.
Perfect growing conditions and the absence of any truly superb vintages in the past decade have contributed to the frenzy, but so, apparently, has the magic number -- 2000 -- on each label.
Another painting, "Paysage avec Biche" — without hunters, but with a brown doe bedded cozily in a glade — is truly superb in the air of intimacy and innocence it somehow conveys.
But don't blame yourself, not if you're picking up a bottle of this truly superb cognac for Dad this year.
In the late 1960's, at the height of her career, Hannah Arendt, among the few women who find their way into this narrative, collected a series of occasional pieces, several of them truly superb, in a volume entitled "Men in Dark Times".
I like it in his sweet pancakes, but it would be truly superb in a savoury context.
