Dradnaught or Dreadnaught: How To spell?

The word Dradnaught is misspelled against Dreadnaught, a noun meaning "A fearless person."

Dreadnaught has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets dr & dnaught is misspelled as 'A'
Wrong Spelling:  dr-a-dnaught 
Correct Spelling:  dr-ea-dnaught 
Check more misspelled words of Dreadnaught to spell it correct.

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