Superterranain or Superterranean: How To spell?

The word Superterranain is misspelled against Superterranean, an adjective meaning "Being above ground."

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

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