Other forms: shortcomings
A shortcoming is a fault or weakness that keeps something from being good enough. It falls short, and here is where.
It is usually plural, and listing the shortcomings of a plan is the standard formula of any critical report. The word is measured rather than harsh, which is why it appears in official writing where failing would sound too strong. Applied to a person it is gentler than fault. It is written as one word, and the image is of falling short of a mark.
1nounshortcomingA fault or failure to meet a required standard.
“The report lists three serious shortcomings.”
Also accepted in games: flaw, failing
From short + coming.
Etymology from Wiktionary, CC BY-SA