expression, i-adjective
incompetent; lacking ability; have no merit
Describes a person or thing as lacking skill, talent, or worth. Often used in self-deprecation or criticism. The pattern 能のない is a synonymous adnominal form.
See also: 能のない
彼は能がないから、簡単な仕事しか任せられない。
He's incompetent, so he can only be entrusted with simple tasks.
こんな能がない作品を見せられても困る。
It's troubling to be shown such a worthless piece of work.