The phrase "lose faith" is commonly used to describe a loss of confidence or trust in someone or something. There are several synonyms for this phrase, including "lose trust," "lose confidence," "lose hope," and "become disillusioned." These words all suggest a feeling of disappointment or disillusionment, often resulting from a negative experience or realization. Other synonyms for "lose faith" include "lose belief," "lose conviction," and "lose assurance." These words suggest a deep sense of disappointment or disillusionment, often resulting from a realization that one's beliefs or convictions have been misplaced or betrayed. Ultimately, whether you use "lose faith" or one of its synonyms, the message is clear: something important has been lost, and it may take time to regain it.