The phrase "hadst a shot at" means to have attempted or tried to do something. Antonyms for this phrase could include "passed up," "ignored," or "avoided." These words indicate a lack of effort or interest in attempting something, whether due to fear, disinterest, or laziness. Other antonyms could include "succeeded easily," "nailed it," or "hit the mark," which indicate success in achieving a goal without much effort or hardship. Overall, antonyms for "hadst a shot at" suggest a lack of engagement or success in attempting a task or goal.