"haddest way" is not a single word but a phrase, therefore antonyms for it cannot be applied. However, if we consider the two words that make up this phrase, "had" and "way," we can find several antonyms. For "had," antonyms could include "lacked," "lost," or "possessed not." For "way," antonyms could include "block," "obstacle," or "hindrance." Therefore, antonyms for "haddest way" could be phrases like "lacked hindrance" or "possessed not obstacles." However, it is important to note that "haddest way" is an archaic phrase and not commonly used in modern English.