Imaterial or Immaterial: How To spell?
The word Imaterial is misspelled against Immaterial, an adjective meaning "Not consisting of matter; incorporeal; spiritual; disembodied."
Immaterial has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings i & aterial which should not be misspelled with single 'M'
Wrong Spelling:  i-m-aterial  Correct Spelling:  i-mm-aterial 
Find more wrongly spelled words of Immaterial to spell it well.