Antonyms for the phrase "place confidence in" include distrust, doubt, suspicion, misgiving, skepticism, disbelief, and uncertainty. When we place confidence in someone or something, we have faith and trust in their abilities or reliability. However, when we experience doubt or skepticism, we are less willing to rely on them. It is important to consider carefully the people and institutions we place our confidence in, and to be willing to question and reevaluate our trust when circumstances change. Ultimately, healthy skepticism and critical thinking can help us make better judgments and avoid being taken advantage of.