The term "unfreeze" refers to a change in an organization's structure or culture, often as part of a larger process called "change management." During this phase, the existing ways of doing things are challenged and new ideas are introduced. The goal is to break down barriers and encourage innovation by creating an environment that is more open to change. This can involve rethinking traditional roles and responsibilities or altering long-standing policies and procedures in order to better meet the needs of the organization and its stakeholders.