"condescending about" is a grammatically correct phrase and can be used in written English.
It means to speak or behave in a patronizing or superior manner towards someone or something. Example: The CEO was incredibly condescending about the company's financial struggles, making the employees feel as if their hard work was not appreciated.
Oprah is beyond condescending about it.
It's fashionable to be snarky and condescending about them, but that's too easy.
Advertising people were, he said recently, deeply condescending about the fledgling Wolff Olins business.
Perhaps as a result, academic critics and literary journalists are often condescending about them.
"The metropolitan press were sometimes condescending about Huddersfield," Mr. Steinitz said.
They weren't self-righteous and condescending about it – if anything, they were doing their thing without a second thought.
He neither bloviates on global economic policy nor condescends about China's Green autocracy.
You know the kind of thing I'm talking about: condescending stories about party officials mixing £10,000 bottles of Château Cheval Blanc with lemonade, or tomato juice with Château Margaux.
Popular diagnoses abound—"If we didn't have Manny to talk about, who would we talk about?" Duquette says and tend toward the faintly condescending, clichés about Ramirez as man-child ("He's great with kids") or idiot savant or holy fool.
The tone of his letters and diaries of the period were acute, but both intellectually condescending and chippy about social hierarchy, including the "outdated bourgeois fripperies" of the Oxford Union.
Popular diagnoses abound — "If we didn't have Manny to talk about, who would we talk about?" Duquette says — and tend toward the faintly condescending, clichés about Ramirez as man-child ("He's great with kids") or idiot savant or holy fool.
