bombast (n.)

• absurdity
• amphigory
• babble
• balderdash
• blabber
• blather
• bluster
• boast
• boastfulness
• boasting
• brag
• braggadocio
• bragging
• bravado
• claptrap
• conceit
• drivel
• drool
• fiddle-faddle
• flatulence
• flummery
• folderol
• fudge
• fustian
• gabble
• gammon
• gasconade
• gibber
• gibberish
• gobbledygook
• grandiloquence
• heroics
• hocus-pocus
• humbug
• jabber
• jactation
• jactitation
• jargon
• magniloquence
• nonsense
• palaver
• prate
• prattle
• puffery
• pyrotechnics
• rant
• rhapsody
• rhetoric
• rigamarole
• rigmarole
• rodomontade
• rubbish
• sesquipedality
• show
• side
• swagger
• trash
• trumpery
• tumidity
• turgidity
• twaddle
• vanity
• vaporing
• vaunt