The antonyms for the word "mis-trustful" are "trustful," "confident," "assured," "faithful," "believing," "reliant," and "trusting." Trust is an essential aspect of any relationship, and being mistrustful can damage relationships and create a toxic environment. Trustful individuals believe in others, their intentions, and their actions, making them more likely to enter into healthy and positive relationships. Confidence is also a desirable trait, as it allows individuals to take risks and pursue their goals without fear of failure. Being assured of oneself and others can aid in reducing stress and anxiety and enhance personal growth. In short, trusting and having faith in others can facilitate better and healthier relationships.