academical vs clueful

academical

adj
  • Belonging to the school of Plato; believing in Plato's philosophy; sceptical . 

  • Pertaining to a university or other form of higher education. 

noun
  • Academic dress, consisting of a cap and gown. 

clueful

adj
  • Knowledgeable and well-informed. 

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