What term describes not accomplishing something correctly?

The term that describes not accomplishing something correctly is "failure." Failure indicates that an intended outcome was not achieved, highlighting that a task or objective was not completed successfully. It encompasses a broader range of contexts, from personal goals to applications and processes.

In contrast, the other options do not convey this meaning. "Delay" refers to a situation where something takes longer than expected, but it does not inherently imply that the task was completed incorrectly. "Eligibility" is related to meeting certain criteria for participation in a process or program, while "legally" refers to something that is in accordance with the law and does not pertain to success or failure in accomplishing a goal. Thus, "failure" is the most accurate term for describing the lack of success in completing a task correctly.