Uncertan or Uncertain: How To spell?
The word Uncertan is misspelled against Uncertain, an adjective meaning "Irresolute; inconsonant; variable; untrustworthy; as, an uncertain person; an uncertain breeze."
Word contains consecutive vowels 'AI' in between alphabets uncert & n is misspelled as 'A'Wrong Spelling:  uncert-a-n  Correct Spelling:  uncert-ai-n 
Explore spell check of Uncertain to spell without errors.