highfalutin

As adjectives the difference between highfalutin and bombastic

is that highfalutin is (us|informal) self-important, pompous; arrogant or egotistical; tending to show off or hold oneself in unduly high regard while bombastic is showy in speech and given to using flowery or elaborate terms; grandiloquent; pompous.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective highfalutin is

(us|informal) self-important, pompous; arrogant or egotistical; tending to show off or hold oneself in unduly high regard.

is likely misspelled.

has no English definition.

As an adjective highfalutin

is self-important, pompous; arrogant or egotistical; tending to show off or hold oneself in unduly high regard.

As adjectives the difference between highfalutin and magnisonant

is that highfalutin is (us|informal) self-important, pompous; arrogant or egotistical; tending to show off or hold oneself in unduly high regard while magnisonant is (obsolete) highfalutin, pretentious.