The antonym for "haddest authority" could be "lacked power." If someone "haddest authority," it means they possessed the ability to control, dominate or influence others. Conversely, if they lacked power, then they wouldn't have the same level of influence. Other antonyms of the phrase could include "inferiority," "subordination," and "weakness." If an individual has a lack of authority, this can result in them being unable to make decisions or have their opinions heard. Consequently, it's advantageous to have authority, but it's important to use it wisely and ethically to avoid being viewed as oppressive.