The term "not allocated" can be replaced by several different synonyms depending on the context. In the world of finance and accounting, these could include "unassigned," "unallocated," "unappropriated," or "undesignated" funds. In the realm of logistics or supply chain management, "unassigned," "uncommitted," or "unutilized" resources may be more commonly used. Similarly, for tasks or responsibilities, "unassigned," "unattended," or "unspecified" may be fitting. Regardless of the field, each synonym holds a slightly different shade of meaning and connotation, so it is important to choose the best word for the intended audience and purpose.