The phrase "places trust in" suggests a reliance on someone or something for support, guidance, or protection. Antonyms for this phrase could include words like distrust, suspicion, doubt, skepticism, and uncertainty, which convey a sense of unease or lack of confidence in the reliability of someone or something. These antonyms suggest a need for caution or vigilance in dealing with others, and a reluctance to rely too heavily on external sources of support or guidance. Other antonyms might include words like abandon, neglect, or reject, which suggest a complete lack of trust or confidence in another person or in one's own abilities.