athletic vs operant

athletic

noun
  • A muscular, large–boned person, in the typology of Ernst Kretschmer. 

adj
  • An attribute of a motion or play which requires fine physical ability. 

  • Of a level in a Super Mario game with an emphasis on platforming challenge, often involving precise jumps between floating platforms above a bottomless pit, and having upbeat background music. 

  • Having a muscular, well developed body, being in shape. 

  • Having to do with athletes. 

  • Physically active. 

operant

noun
  • An operative person or thing. 

  • Any of a class of behaviors that produce consequences by operating (i.e., acting) upon the environment. 

adj
  • That operates to produce an effect. 

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