Attunability or Attainability: How To spell?

The word Attunability 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 'U'
Wrong Spelling:  att-u-nability 
Correct Spelling:  att-ai-nability 
Check more misspelled words of Attainability to spell it correct.

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