Antitheast or Antitheist: How To spell?

The word Antitheast is misspelled against Antitheist, a noun meaning "A disbeliever in the existence of God."

Word contains consecutive vowels 'EI' in between alphabets antith & st is misspelled as 'EA'
Wrong Spelling:  antith-ea-st 
Correct Spelling:  antith-ei-st 
Find more wrongly spelled words of Antitheist to spell it well.