Atteonability or Attainability: How To spell?

The word Atteonability is misspelled against Attainability, a noun meaning "The quality of being attainable; attainableness."

Word contains consecutive vowels 'AI' in between alphabets att & nability is misspelled as 'EO'
Wrong Spelling:  att-eo-nability 
Correct Spelling:  att-ai-nability 
Find more incorrect spellings of Attainability to spell right way.

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