Subterranan or Subterranean: How To spell?

The word Subterranan is misspelled against Subterranean, meaning "Situated or occurring below the surface of the earth."

--> Subterranean has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets subterran & n is misspelled as 'A'
Wrong Spelling:  subterran-a-n 
Correct Spelling:  subterran-ea-n 
Check more misspelled words of Subterranean to spell it correct.

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