Efrontuously or Effrontuously: How To spell?
The word Efrontuously is misspelled against Effrontuously, an adverb meaning "Impudently."
Effrontuously has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings E & rontuously which should not be misspelled with single 'F'
Wrong Spelling:  E-f-rontuously  Correct Spelling:  E-ff-rontuously 
Check more misspelled words of Effrontuously to spell it correct.