The antonyms for the phrase 'hadst confidence of' can include terms like mistrust, disbelief, suspicion, doubt, pessimism, and uncertainty. These words convey a lack of faith or reliability in a person, situation, or thing. When one lacks confidence, they are susceptible to worry, fear, and anxiety. It is essential to develop self-esteem and self-belief to overcome these negative emotions. One can achieve this by setting realistic goals, engaging in positive self-talk, and seeking support. Confidence is not something that can be given or taken away, but rather it is something that must be earned through hard work, determination, and self-awareness.