Posted on April 5, 2022April 23, 2022 by Idioms Poster Shrinking wallflowers A mix of Shrinking violets and Wallflowers, used to describe introverted, quiet and unassuming people. Sent in by Uncle Ed, who witnessed a presenter saying it on TV.Related IdiomsReal idiom: A WallflowerReal idiom: A shrinking violet Post navigationPrevious post: Quit breathing down my throatNext post: You’ll be ostrichsized