What is the meaning of flamboyant?

noun

• 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: royal poinciana, flame tree, peacock flower, Delonix regia, Poinciana regia

adjective

• Marked by ostentation but often tasteless.
  • usage: "a cheap showy rhinestone bracelet"; "a splashy half-page ad"
  • synonyms: showy, splashy
• Elaborately or excessively ornamented.
  • usage: "flamboyant handwriting"; "the senator's florid speech"
  • synonyms: aureate, florid