The Collaborative International Dictionary of English v.0.48:

Bravado \Bra*va"do\, n., pl. Bravadoes. [Sp. bravada, bravata,
   boast, brag: cf. F. bravade. See Brave.]
   Boastful and threatening behavior; a boastful menace.
   [1913 Webster]

         In spite of our host's bravado.          --Irving.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bravado
    n 1: a swaggering show of courage [syn: bravado, bluster]

Moby Thesaurus II by Grady Ward, 1.0:

79 Moby Thesaurus words for "bravado":
   adventuresomeness, adventurousness, arrogance, audaciousness,
   audacity, balls, bluff, bluster, bluster and bluff, blustering,
   boast, boastfulness, boasting, bold front, boldness, bombast, brag,
   braggadocio, braggartism, bragging, brash bearing, brashness,
   brassiness, bravura, brazenness, bullying, bumptiousness, bustle,
   cheekiness, cockiness, conceit, contempt, contemptuousness, daring,
   daringness, defial, defiance, defying, derision, derring-do,
   despite, disdain, disregard, enterprise, fanfaronade, flurry,
   fluster, foolhardiness, front, fuss, gasconade, gasconism,
   hectoring, heroics, impertinence, impudence, insolence,
   intimidation, jactation, jactitation, machismo, overboldness,
   pertness, pretentiousness, rant, rodomontade, sauciness,
   self-assurance, side, splutter, sputter, swagger, swashbucklery,
   vanity, vaunt, vauntery, vaunting, venturesomeness,
   venturousness