Undersiled or Undersailed: How To spell?

The word Undersiled is misspelled against Undersailed, an adjective meaning "Inadequately equipped with sails."

Word contains consecutive vowels 'AI' in between alphabets unders & led is misspelled as 'I'
Wrong Spelling:  unders-i-led 
Correct Spelling:  unders-ai-led 
Find more wrongly spelled words of Undersailed to spell it well.

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