deficiency

noun
C1+
1
C1+
the state of not having, or not having enough of, something that is essential
کمبود, نقص, کاستی
synonym shortage
2
C1+
a fault or a weakness in something/somebody that makes it or them less successful
کمبود, نقص, کاستی
deficiencies in the computer system
He considers the lack of central control to be a serious deficiency.