lackadaisically vs like mad

lackadaisically

adv
  • In a lackadaisical manner; without enthusiasm or interest; perfunctorily. 

like mad

prep
  • Like a mad person; in a furious or deranged manner; to a great or excessive degree; with great enthusiasm. 

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