1. (adj)royal poinciana, flamboyant, flame tree, peacock flower, Delonix regia, Poinciana regia showy tropical tree or shrub native to Madagascar; widely planted in tropical regions for its immense racemes of scarlet and orange flowers; sometimes placed in genus Poinciana Synonyms: mimosa bush, flame tree, flame durrajong, huisache, scented wattle, fire tree, sweet wattle, cassie, broad-leaved bottletree, royal poinciana, sweet acacia, peacock flower, flamboyant Antonyms: unpretending, unpretentious, unostentatious, plain