hairline vs slight

hairline

adj
  • very thin, as thin as a hair 

noun
  • A fishing line made from hair. 

  • The line along one's forehead where hair starts growing. 

  • A very thin line in writing, drawing, or typography. 

  • A very thin fissure. 

slight

adj
  • of slender build 

  • still; with little or no movement on the surface 

  • Even, smooth or level 

  • not far away in space or time 

  • gentle or weak, not aggressive or powerful 

  • not thorough; superficial 

  • trifling; unimportant; insignificant 

verb
  • To act negligently or carelessly. 

  • To treat with disdain or neglect, usually out of prejudice, hatred, or jealousy; to ignore disrespectfully. 

  • To treat as unimportant or not worthy of attention; to make light of. 

  • To render no longer defensible by full or partial demolition. 

  • To give lesser weight or importance to. 

  • To throw heedlessly. 

noun
  • The act of ignoring or snubbing; a deliberate act of neglect or discourtesy. 

How often have the words hairline and slight occurred in a corpus of books? (source: Google Ngram Viewer )