Mountianous or Mountainous: How To spell?
The word Mountianous is misspelled against Mountainous, an adjective meaning "Full of, or containing, mountains; as, the mountainous country of the Swiss."
Word contains consecutive vowels 'AI' in between alphabets mount & nous is misspelled as 'IA'Wrong Spelling:  mount-ia-nous  Correct Spelling:  mount-ai-nous 
Check more misspelled words of Mountainous to spell it correct.