Irrevailable or Irrevealable: How To spell?

The word Irrevailable is misspelled against Irrevealable, an adjective meaning "Incapable of being revealed."

Irrevealable has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets irrev & lable is misspelled as 'AI'
Wrong Spelling:  irrev-ai-lable 
Correct Spelling:  irrev-ea-lable 
Find more wrongly spelled words of Irrevealable to spell it well.

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