Definition of "unceremoniousness" [unceremoniousness]
An unceremonial manner (noun)
WordNet. Princeton University. 2010.
Use "unceremoniousness" in a sentence
"It was in keeping with the unceremoniousness of his century."
"They heard a heavy tread, and a rather stout gentleman with a knapsack over his shoulder, apparently a foreigner, emerged from behind the clump, and staring, with the unceremoniousness of a tourist, at the couple sitting on the garden-seat, gave a loud cough and went on."
"“What next?” exclaimed Kuzma Vassilyevitch, not altogether pleased by such unceremoniousness."