not much to look at vs unattractive

not much to look at

adj
  • Unattractive. 

unattractive

adj
  • Not handsome or beautiful or appealing. 

  • Lacking the power to attract interest. 

noun
  • An aesthetically unattractive person 

How often have the words not much to look at and unattractive occurred in a corpus of books? (source: Google Ngram Viewer )