Briliantness or Brilliantness: How To spell?
The word Briliantness is misspelled against Brilliantness, a noun meaning "Brilliancy; splendor; glitter."
Brilliantness has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings bri & iantness which should not be misspelled with single 'L'
Wrong Spelling:  bri-l-iantness  Correct Spelling:  bri-ll-iantness 
Find more wrongly spelled words of Brilliantness to spell it well.