1. In a turgid manner
   "he lectured bombastically about his theories"
   - turgidly 
2. In a grandiose manner
   "the building was bombastically spacious"
   - grandiosely

See also: bombastic

• blow over
• blow-by-blow
• blow-dry
• blowback
• blowball
• blowdown
• blower
• blowfish
• blowfly
• blowgun
• blowhard
• blowhole
• blowie
• blowing
• blowing gas
• blowing up
• blowjob
• blowlamp
• blown
• blown-up
• blowout
• blowpipe
• blowsy
• blowtorch
• blowtube