To my mind, they are a less prissy and more dignified alternative to a sundress.
From the independent.co.uk
There seems to be an outbreak of mega-prissy atheists in the Guardian recently.
From the guardian.co.uk
One is macho aggressive, one is flailingly dumb, and one is provokingly prissy.
From the time.com
In the film, Obama's opposition to torture comes off as wrongheaded and prissy.
From the nzherald.co.nz
The cooking at the Mistley Thorn is big and messy, rather than prissy and subtle.
From the guardian.co.uk
The previous year's Preakness Infield had been widely panned as a prissy disaster.
From the online.wsj.com
So how did orchids turn from prissy rarities to the world's bestselling pot plant?
From the independent.co.uk
The Nissan Cube is a car with a prissy reflection and an inspirational style.
From the theepochtimes.com
The noise has been generated by food that is the opposite of prissy and overworked.
From the guardian.co.uk
More examples
Priggish: exaggeratedly proper; "my straitlaced Aunt Anna doesn't approve of my miniskirts"
Dainty: excessively fastidious and easily disgusted; "too nice about his food to take to camp cooking"; "so squeamish he would only touch the toilet handle with his elbow"