left field vs sinistral

left field

noun
  • The defensive position in the outfield to the left. 

  • An unusual or unexpected position, or a viewpoint held by very few others in contrast to the majority viewpoint (especially in the phrases out in left field and way out in left field) 

  • An unexpected, bizarre, or unwatched source (especially in the phrases out of left field and from left field). 

  • The part of a baseball field which is beyond the infield and to the left of a person standing on home plate and facing the pitcher. 

sinistral

noun
  • A left-handed individual. 

adj
  • Having left lateral fault movement. 

  • Of, facing, or on the left side. 

  • Left-handed. 

  • Having the whorls of the spire revolving or rising to the left; reversed. 

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