bombast bombardon • bombaster · · · Info · Definitions · Synonyms · Characters · · bombast · · Text Latin · · Script 7 · · Length Definitions · · · (noun) pompous or pretentious talk or writing. Synonyms: fustian, rant, claptrap, blah. · · Noun Definition 1 Synonyms · · · fustian · · Synonym 1 rant · · Synonym 2 claptrap · · Synonym 3 blah · · Synonym 4 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 m latin small letter m U+006D o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074