Unimporable or Unimpairable: How To spell?

The word Unimporable is misspelled against Unimpairable, an adjective meaning "That can not be impaired."

Word contains consecutive vowels 'AI' in between alphabets unimp & rable is misspelled as 'O'
Wrong Spelling:  unimp-o-rable 
Correct Spelling:  unimp-ai-rable 
Find more incorrect spellings of Unimpairable to spell right way.

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