Nonarival or Nonarrival: How To spell?
The word Nonarival is misspelled against Nonarrival, a noun meaning "Failure to arrive."
Nonarrival has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings nona & ival which should not be misspelled with single 'R'
Wrong Spelling:  nona-r-ival  Correct Spelling:  nona-rr-ival 
Find more incorrect spellings of Nonarrival to spell right way.