Indefausible or Indefeisible: How To spell?

The word Indefausible is misspelled against Indefeisible, an adjective meaning "Indefeasible."

Word contains consecutive vowels 'EI' in between alphabets indef & sible is misspelled as 'AU'
Wrong Spelling:  indef-au-sible 
Correct Spelling:  indef-ei-sible 
Check more misspelled words of Indefeisible to spell it correct.