What does the word positive mean?

Usage examples for positive

  1. I do not think he was learned; but he was always so positive, and always so ready with his opinions, and always so ready to back them up too, that all were willing to ask his opinion in matters of doubt, and few were willing to question his replies. – First Fam'lies of the Sierras by Joaquin Miller
  2. Bonaparte knew well what he wanted, but he did not like to name it in any positive way. – The Project Gutenberg Memoirs of Napoleon Bonaparte by Bourrienne, Constant, and Stewarton
  3. I wish, my dear, you would be less positive. – When Ghost Meets Ghost by William Frend De Morgan