Atheustical or Atheistical: How To spell?

The word Atheustical is misspelled against Atheistical, an adjective meaning "Disbelieving the existence of a God; impious; godless; -- applied to persons; as, an atheistic writer."

Word contains consecutive vowels 'EI' in between alphabets ath & stical is misspelled as 'EU'
Wrong Spelling:  ath-eu-stical 
Correct Spelling:  ath-ei-stical 
Check more misspelled words of Atheistical to spell it correct.