flamboyant

Short definition from Wiktionary

Adjective

1. 1
   Showy, bold or audacious in behaviour, appearance, style, etc.; ostentatious.
2. 2
   Referring to the final stage of French Gothic architecture from the 14th to the 16th centuries.
3. 3
   Of a blade: forged in a wavy, undulating pattern, like a flame-bladed sword or a kris.
4. 4
   Alternative letter-case form of flamboyant.

Noun

1. 1
   The royal poinciana (Delonix regia), a showy tropical tree from Madagascar.