curious vs far-out

curious

adj
  • Leading one to ask questions about; somewhat odd, out of the ordinary, or unusual. 

  • Containing or pertaining to trivalent curium. 

  • Tending to ask questions, or to want to explore or investigate; inquisitive; (with a negative connotation) nosy, prying. 

  • Caused by curiosity. 

far-out

adj
  • Very unusual, eccentric or unconventional 

  • Used other than figuratively or idiomatically: see far, out. 

How often have the words curious and far-out occurred in a corpus of books? (source: Google Ngram Viewer )