Monotheastic or Monotheistic: How To spell?

The word Monotheastic is misspelled against Monotheistic, an adjective meaning "pertaining to monotheism."

Word contains consecutive vowels 'EI' in between alphabets monoth & stic is misspelled as 'EA'
Wrong Spelling:  monoth-ea-stic 
Correct Spelling:  monoth-ei-stic 
Find more incorrect spellings of Monotheistic to spell right way.