Both Anabaptism and postmodernism have a commitment to allowing plural and diverse traditions to live peaceably side by side. Not everyone has to be the same. Both recognize experience beyond the five senses and reason. This allows room for intuition, emotional intelligence, and revelation. Both believe there is no neutral place from which to perceive truth.
Truth is always from a context.
In Anabaptist thought, that context is the unity of knowing and doing. Both recognize the importance of praxis. Reason is not enough. The postmodern collapse of confidence in the modern, rational, autonomous self has led to a search for new communities of belonging. All truth is subjective and relative vs. truth is revealed in Jesus Christ and known by doing it.