astrological vs oracular

astrological

adj
  • Of, or relating to astrology. 

oracular

adj
  • Of or relating to an oracle. 

  • Ambiguous, hard to interpret. 

  • Wise, authoritative. 

  • Prophetic, foretelling the future. 

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