Precavido translates to "cautious" or "precautious". It's a less common but very descriptive word that highlights a key personality trait.
In the context of this corrido, the protagonist Mario is described as someone who "fue muy precavido" (was very cautious). This word is interesting because it sets up a tragic irony: despite his careful nature, he still meets an unexpected end, making the word stand out in the narrative of the song.
This song, "El Chicahuas," tells the story of Mario, a man from Sinaloa, California. Even as a young boy, Mario showed he was a decisive person, someone who knew how to handle himself. He was always careful and made big deals, trying to be honest in his business. He didn't like it when people played dirty with him.
Mario was always cautious, knowing life had a price. It's almost as if he sensed what was coming. He was in Sinaloa, and though he was on his guard, he was ambushed. The lyrics say, "lo acompañaba el tornillo esperaron por la espalda" (the screw accompanied him, they waited from behind). He was shot in his car. The song ends with his body being sent back in a box, bearing his brother's name, and his family and friends mourning him, while the "parents guard them" ("los padres guardarlos") from the trap. It's a classic corrido about a life lived with caution but ending in tragedy.