arbitrary vs odd

arbitrary

adj
  • Determined by independent arbiter. 

  • Not representative or symbolic; not iconic. 

  • Determined by impulse rather than reason; heavy-handed. 

  • Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random. 

  • Any, out of all that are possible. 

noun
  • Anything arbitrary, such as an arithmetical value or a fee. 

odd

adj
  • Numerically indivisible by two. 

  • About, approximately; somewhat more than (an approximated round number). 

  • Scattered; occasional, infrequent; not forming part of a set or pattern. 

  • Used or employed for odd jobs. 

  • Left over or remaining (as a small amount) after counting, payment, etc. 

  • Numbered with an odd number. 

  • Without a corresponding mate in a pair or set; unmatched; (of a pair or set) mismatched. 

  • Not regular or planned. 

  • Differing from what is usual, ordinary or expected. 

  • Left over, remaining after the rest have been paired or grouped. 

  • Peculiar, singular and strange in looks or character; eccentric, bizarre. 

  • On the left. 

  • Out of the way, secluded. 

noun
  • An odd number. 

  • Something left over, not forming part of a set. 

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