Inefectiveness or Ineffectiveness: How To spell?
The word Inefectiveness is misspelled against Ineffectiveness, a noun meaning "Quality of being ineffective."
Ineffectiveness has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Ine & ectiveness which should not be misspelled with single 'F'
Wrong Spelling:  Ine-f-ectiveness  Correct Spelling:  Ine-ff-ectiveness 
Find more wrongly spelled words of Ineffectiveness to spell it well.