Subterranain or Subterranean: How To spell?

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

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

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