Antonyms for the phrase "bad faiths" could include "good faiths", "honesty", "integrity," "sincerity", and "truthfulness". These antonyms describe the opposite of deceitful or dishonest actions and behaviors.
Acting in good faith involves honesty, trustworthiness, and sincerity while making decisions and communicating with others. Demonstrating integrity means doing what is right even when it isn't easy, being honest in all situations, and treating others with respect.
In contrast to bad faiths, good faiths build trust and positive relationships between individuals, groups, and communities. Striving for these antonyms can help create a more honest and just world.