failuren.[From Fail.]1. Cessation of supply, or total defect; a failing; deficiency; as, failure of rain; failure of crops.()2. Omission; nonperformance; as, the failure to keep a promise.()3. Want of success; the state of having failed.()4. Decay, or defect from decay; deterioration; as, the failure of memory or of sight.()5. A becoming insolvent; bankruptcy; suspension of payment; as, failure in business.()6. A failing; a slight fault.(Johnson.)