wallflower UK /ˈwɔːlˌflaʊ.ə/US /ˈwɔlˌflaʊ.ɚ/noun 4verb 1forms 3 noun4 •Any of several short-lived herbs or shrubs of the Erysimum genus with bright yellow to red flowers.A polypetalous corolla is either cruciform, as in a wall-flower, rosaceous, papilionaceous, as in the pea kind, or incomplete, when some parts found in analogous flowers are wanting. — 1809 •A person who does not dance at a party, due to shyness or unpopularity; by extension, anyone who is left on the sidelines while an activity takes place.Mrs. Galbraith shook all over with laughter as she replied, "Hear that boy, asking me to dance ! I'm content to be a wallflower, now-a-days." — 1878 •(informal) Any person who is socially awkward, shy, or reserved.I've always been a wallflower, even in my own home. But, I'm willing to learn to be a part of your world. I would like to. I have already told my parents that I want to go to soirées. — 2019 •Gastrolobium grandiflorum, a poisonous bushy shrub, endemic to Australia. verb1 •To stand shyly apart from a dance, waiting to be asked to join in.[…] the idea that a full tango experience is impossible without the presence of wallflowers and without the threat of wallflowering as the potential dancers enter the tango club. — 2010 formswallflowered · wallflowering · wallflowers