Ahmad Nawaz Yes, contronyms *are* quite fascinating! an
  unambiguous language is something people continue to try to
  create but it's quite difficult to get people to adopt a new
  languge. Exception being pidgeon languages - the Taki-Taki
  language is very small - one claim says 340 words although I
  looked at a dictionary and they have more than that - but
  nevertheless, a very small number of words to describe many
  things. "