Absenteesm or Absenteeism: How To spell?

The word Absenteesm is misspelled against Absenteeism, a noun meaning "The state or practice of an absentee; esp. the practice of absenting one's self from the country or district where one's estate is situated."

Word contains consecutive vowels 'EI' in between alphabets absente & sm is misspelled as 'E' as letter 'I' is phonetically igno
Wrong Spelling:  absente-e-sm 
Correct Spelling:  absente-ei-sm 
Explore spell check of Absenteeism to spell without errors.