Retentivenes or Retentiveness: How To spell?
The word Retentivenes is misspelled against Retentiveness, a noun meaning "The quality of being retentive."
Retentiveness has double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  retentivene-s  Correct Spelling:  retentivene-ss 
Find more wrongly spelled words of Retentiveness to spell it well.