vb. To be wanting; to fall short; to be or become deficient in any measure or degree up to total absence; to cease to be furnished in the usual or expected manner, or to be altogether cut off from supply; to be lacking; as, streams fail; crops fail. To become insolvent or bankrupt. To be affected with want; to come short; to lack; to be deficient or unprovided; - used with of. To fall away; to become diminished; to decline; to decay; to sink. To deteriorate in respect to vigor, activity, resources, etc.; to become weaker; as, a sick man fails. To perish; to die; - used of a person. To be found wanting with respect to an action or a duty to be performed, a result to be secured, etc.; to miss; not to fulfill expectation. To come short of a result or object aimed at or desired ; to be baffled or frustrated. To err in judgment; to be mistaken. To become unable to meet one's engagements; especially, to be unable to pay one's debts or discharge one's business obligation; to become bankrupt or insolvent.
To leave unperformed; to omit; to neglect, as distinguished from ...