Unreen or Unrein: How To spell?

The word Unreen is misspelled against Unrein, a verb meaning "To loosen the reins of; to remove restraint from."

Word contains consecutive vowels 'EI' in between alphabets unr & n is misspelled as 'EE'
Wrong Spelling:  unr-ee-n 
Correct Spelling:  unr-ei-n 
Explore spell check of Unrein to spell without errors.