Weightines or Weightiness: How To spell?
The word Weightines is misspelled against Weightiness, a noun meaning "The quality or state of being weighty; weight; force; importance; impressiveness."
Weightiness has double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  weightine-s  Correct Spelling:  weightine-ss 
Find more wrongly spelled words of Weightiness to spell it well.