The characteristic of being dowdy; frumpiness; plainness.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "dowdiness" in a sentence
"Nor is there the slightest need that this kind of dressing involve "dowdiness," or "slouchiness," a characteristic abhorrent to every true woman."
"Miss Savage, he says, was short, fat, had hip disease, and that kind of dowdiness which I used to associate with ladies who had been at school with my mother."
"Susan Boyle lives with her cat, is unemployed, a church volunteer, has a high dowdiness quotient, no hairdo except gray and wild."