Indios Bravos And Indios Reducidos
INDIOS BRAVOS AND INDIOS REDUCIDOS. In Spanish Texas, indios bravos were Indians who remained as yet out of the sphere of influence of the Spanish missions. That influence included an introduction to European customs, training in European skills, and, most importantly, conversion to Christianity. The term indios bravos, “courageous (or warlike) Indians,” was used to denote both Indians who were resistant to Spanish inculturation and those who simply had not yet been encountered by the Spanish.
Full article on the Texas State Historical Association's Handbook of Texas Online