diffusive vs dilatory

diffusive

adj
  • That diffuses something; disseminating. 

  • That is spread or dispersed across a wide area or among a large number of people. 

  • Involving or employing many words; expansive, discursive; (in negative sense) long-winded. 

  • Pertaining to diffusion. 

dilatory

adj
  • Relating to dilation; dilative. 

  • Slow or tardy. 

  • Intentionally delaying (someone or something), intended to cause delay, gain time, or defer decision. 

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