能なし

のうなし【能なし】

〔事〕 incompetence; 〔人〕 a good-for-nothing; an [a hopeless] incompetent; 《口》 an [a complete] idiot; a useless bastard; 《米》 a no-brainer; 《英》 a [an absolute] berk.

●能なしの good-for-nothing; incompetent; useless; hopeless; feckless.

●あの男は能なしだ. He's totally [completely] useless [hopeless]. | He's a total [a complete, an absolute] idiot.

・まったくの能なしでは世間に立って行けない. There's no room (in society) for utterly useless people (like you).