exceptional vs singular

exceptional

adj
  • Forming an exception; not ordinary; uncommon; rare. 

  • Corresponding to something of lower dimension under a birational correspondence. 

  • Better than the average; superior due to exception or rarity. 

noun
  • An exception, or something having an exceptional value 

singular

adj
  • Being the only one of the kind; unique. 

  • Referring to only one thing or person. 

  • Distinguished by superiority: peerless, unmatched, eminent, exceptional, extraordinary. 

  • Having the property that the matrix of coefficients of the new variables has a determinant equal to zero. 

  • Out of the ordinary; curious. 

  • Each; individual. 

  • Being only one of a larger population. 

  • Not equal to its own cofinality. 

  • Having no inverse. 

noun
  • A form of a word that refers to only one person or thing. 

  • That which is not general; a specific determinate instance. 

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