intransitive. Of a thing: To prove unreliable; to fail, give way.

intransitive. To come short of a standard; to make default, fail. Obsolete.

With to. to be wanting to oneself: to fail to do justice to oneself; to fall below the standard imposed by one's character and abilities. Obsolete.

transitive. With infinitive as object. To fail to do something. Also intransitive: to fail in an endeavour. Obsolete.

transitive and intransitive. To shoot short (of) or too low (for). Also figurative, esp. of financial performance.

intransitive. colloquial. to come up short. To be deficient or lacking in something; to fail to reach a goal, standard, or target; to fall short.

intransitive. To perform in a manner which falls below expectation.