ince the pioneering works of Resslie Newbigin, and the Gospel and Our Culture Network(GOCN), themes of the missional church have been actively discussed in both the West and Korea. But, understanding of the term ‘missional’ has varied according to the theological standpoints of its users. It is absolutely desirable to emphasize diverse aspects of ‘missional.’ However, it is not desirable to see its concept from a reductionist perspective, which has no balance and harmony with other aspects. In this respect, this paper aims to criticize reductionist understandings of ‘missional’ in both the Western society and the Korean context, and assert to construe it from a wholistic perspective.There are two narrow or reductionist understandings for the term ‘missional’: one is linked to a traditional understanding of mission, while the other is ironically related to the imbalance of recent discussions about missional ecclesiology. On the one hand, the problems that the reductionist understanding of the former faces are the geographical approach of mission, the event or program-oriented approach of mission, the approach restricted to especially verbal evangelism, and the church-centered approach. On the other hand, the reductionist problems of ‘missional’ can be derived from a distorted approach that tends to see it only in the social participation-oriented way. Those imbalance and inharmony are presented in disregard for individual conversion by overemphasizing social services and social actions, failing to realize the significance of verbal evangelism by overemphasizing Christian presence, diluting God’s redemptive actions by overemphasizing God’s creative actions in the world, ignoring the positive roles of large-sized churches by overemphasizing the functions of small-sized churches. To overcome these problems, we need a wholistic understanding of ‘missional,’ which is beyond the simple physical combination of the two extremes, based on the nature of the missional church. Because the church is not a building, organization, or business, but the gathering and scattering of God’s people who carry out His missional concern and plans in the world, ‘missional’ cannot be thought in a simple black-and-white manner. Rather, it assumes very complex aspects according to context as the world, the actual place of God’s creature and redemption, is complex. In addition, ‘missional’ works in a process in the complex world of life, beyond one-time events and programs, and in an incarnational praxis to find its authentic meanings.