"are flattering" is grammatically correct and can be used in written English.
Example: "The compliments he received from his coworkers are flattering, but he knows he still has room for improvement."
Some of the comparisons are flattering; others are not.
Fabrics are luxe, colors are gorgeous, cuts are flattering to a range of body types.
He acknowledges that the attention and favorable poll numbers are flattering.
When we make objects that look like us, we unconsciously are flattering ourselves.
"I don't think these spots are flattering to Bush, David Axelrodd, a Democratic media consultant, said.
Fringes are flattering and I've had a full fringe since the late 80s when I was coming up to my forties.
Words like "radical", which are flattering in some contexts but damaging when applied to a Muslim, have been repeatedly flung at Mr Khan.
Best of all, the clothes are flattering whether you've just had a baby or you've just had a pint of ice cream.
Trends aside, however, defined natural brows are flattering, and Lancôme's artistic director for make-up, Aaron de Mey, likens the complexion to a canvas and the brows to its frame.
August 21, 1947 Dear Elizabeth: (You must be called that; I'm called Cal, but I won't explain why. None of the prototypes are flattering: Calvin, Caligula, Caliban, Calvin Coolidge, Calligraphy — with merciless irony).
Fabrics that drape are flattering for many women, said Ms. Rose, who also uses chiffon in her bridesmaid collection, which she introduced shortly after her bridal-line debut in fall 2006.
