Nulless or Nailless: How To spell?

The word Nulless is misspelled against Nailless, an adjective meaning "Without nails; having no nails."

Word contains consecutive vowels 'AI' in between alphabets n & lless is misspelled as 'U'
Wrong Spelling:  n-u-lless 
Correct Spelling:  n-ai-lless 
Check more misspelled words of Nailless to spell it correct.

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