neededness noun2 •Dependency; the state of one segment of code requiring another segment to complete.Such nested calls are a major source of difficulty in designing a fixpoint algorithm based on neededness analysis, because they are the reason for the dynamic nature of the neededness information. — 1994 •(rare) The state of being needed or necessary.All right then . . . what about . . . neededness? D'you know, Mandy, that's what's the matter with me today! I've lost my neededness! — 2000