- an act or instance of failing; failure: His failing is due to general incompetence.
- a defect or fault; shortcoming; weakness: His lack of knowledge is a grave failing.
- in the absence or default of: Failing payment, we shall sue.
- a weak point; flaw
- (used to express a condition) in default offailing a solution this afternoon, the problem will have to wait until Monday
“defect, fault,” 1580s, verbal noun from fail (v.).