smashing vs terrific

smashing

adj
  • Wonderful, very good or impressive. 

  • Serving to smash (something). 

noun
  • Gerund: The action of the verb to smash. 

terrific

adj
  • Extremely good; excellent, amazing. 

  • Very strong or intense; excessive, tremendous. 

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