Nonatention or Nonattention: How To spell?
The word Nonatention is misspelled against Nonattention, a noun meaning "Inattention."
Nonattention has double "tt" is mispronounced as "t"Remember double 'TT' in between the strings nona & ention which should not be misspelled with single 'T'
Wrong Spelling:  nona-t-ention  Correct Spelling:  nona-tt-ention 
Find more incorrect spellings of Nonattention to spell right way.