The word Montonable is misspelled against Maintainable, an adjective meaning "That maybe maintained."
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Word contains consecutive vowels 'AI' twice is misspelled as 'O'
Wrong Spelling:  m-o-nt-o-nable 
Correct Spelling:  m-ai-nt-ai-nable 
Find more incorrect spellings of Maintainable to spell right way.