ideational vs speculative

ideational

adj
  • Pertaining to the formation of ideas or thoughts of objects not immediately present to the senses. 

speculative

adj
  • Characterized by speculation; based on guessing, unfounded opinions, or extrapolation. 

  • Pursued as a gamble, with possible large profits or losses; risky. 

  • Pertaining to financial speculation; Involving or resulting from high-risk investments or trade. 

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