noun, na-adjective, noun which may take the genitive case particle 'no'
incompetence; inability; inefficiency
Describes a lack of ability, skill, or effectiveness. Can be used as a noun or adjectivally (な-adjective or の-adjective). Often used in formal or critical contexts.
Antonyms: 有能
彼の無能さには驚かされる。
I am amazed at his incompetence.
その計画は無能なリーダーのせいで失敗した。
The plan failed because of the incompetent leader.
noun
Refers to a person who lacks ability or is ineffective. Often used critically.
あいつは本当に無能だ。
That guy is really incompetent.