The concept of antonyms for the word "hadst hunch" is quite perplexing as "hunch" primarily means an instinct, intuition or suspicion. "Hadst" being an archaic form of "had," further complicates the matter. Despite this, there are some possible antonyms for "hadst hunch" that one can consider. If hunch is interpreted as a feeling of foreboding or unease, then its antonyms could be trust, confidence, or reassurance. However, if we consider "hadst hunch" as a force of intuition or instinct, its antonyms could be rationality, logic or reason. Nonetheless, "hadst hunch" is an outdated phrase that may not require antonyms in modern-day usage.