conventional vs old-fashioned

conventional

adj
  • Banal, trite, hackneyed, unoriginal or clichéd. 

  • Ordinary, commonplace. 

  • In accordance with a bidding convention, as opposed to a natural bid. 

  • Pertaining to a convention, as in following generally accepted principles, methods and behaviour. 

  • Pertaining to a weapon which is not a weapon of mass destruction. 

  • Making use of synthetic fertilizers and pesticides. 

noun
  • A conventional gilt-edged security, a kind of bond paying the holder a fixed cash payment (or coupon) every six months until maturity, at which point the holder receives the final payment and the return of the principal. 

old-fashioned

adj
  • Of a thing, outdated or no longer in vogue. 

  • Of a person, preferring the customs of earlier times. 

noun
  • A cocktail made by muddling sugar with bitters and adding whiskey or, less commonly, brandy, served with a twist of citrus rind. 

How often have the words conventional and old-fashioned occurred in a corpus of books? (source: Google Ngram Viewer )