tenuity

Noun

• the quality of lacking intensity or substance
  • a shrill yet sweet tenuity of voice- Nathaniel Hawthorne
    

• a rarified quality
  • the tenuity of the upper atmosphere
    

• relatively small dimension through an object as opposed to its length or width
  • the tenuity of a hair
    
  • the thinness of a rope
    

Related words

• Synonyms: 
  feebleness , rarity , low density , thinness , slenderness