enthusiastic vs lackadaisical

enthusiastic

adj
  • With zealous fervor; excited, motivated. 

  • Relating to enthusiasm, or divine possession. 

lackadaisical

adj
  • Showing no interest, vigor, determination, or enthusiasm. 

  • Lazy; slothful; indolent. 

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