The term missional is getting to be quite popular. It has become a buzzword, and buzzwords often lose their meaning. Missional does have specific roots and a specific movement.
Christianity Today has helped get to the roots of the movement. Alan Hirsch has shared the “Missional Family Tree” on his website called the Forgotten Ways. It’s a helpful tool to know how the buzzword began and to recognize the direct descendants of the missional church movement.