Tachless or Teachless: How To spell?

The word Tachless is misspelled against Teachless, an adjective meaning "Not teachable."

--> Teachless has vowels 'ea' together mispronounced as 'a'
Word contains consecutive vowels 'EA' in between alphabets t & chless is misspelled as 'A'
Wrong Spelling:  t-a-chless 
Correct Spelling:  t-ea-chless 
Explore spell check of Teachless to spell without errors.

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