Synonyms of the word

nonperformance

• n. A failure to perform a task, especially a task that one was legally bound to do.

carelessness

• n. Lack of care.

neglect

• v. (transitive) To fail to care for or attend to something.
• v. (transitive) To omit to notice; to forbear to treat with attention or respect; to slight.
• v. (transitive) To fail to do or carry out something due to oversight or carelessness.
• n. The act of neglecting.
• n. The state of being neglected.
• n. Habitual lack of care.

negligence

• n. The state of being negligent.
• n. (law, singular only) The tort whereby a duty of reasonable care was breached, causing damage: any conduct…
• n. (law, uncountable) The breach of a duty of care: the failure to exercise a standard of care that a reasonable…

nonaccomplishment

• n. Something that does not achieve the intended goal.

nonachievement

• n. Something that does not achieve the intended goal.