unattractive vs unpleasant

unattractive

adj

  • Not handsome or beautiful or appealing. 

  • Lacking the power to attract interest. 

noun

  • An aesthetically unattractive person 

unpleasant

adj

  • Not pleasant. 

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