Meaning of どうしようもない in Japanese

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Definition of どうしようもない

どうしようもない(doushiyoumonai) 【どう仕様も無い ·どう仕様もない】

(exp, adj-i) it cannot be helped; there is no other way
分かってるんだけど、どうしようもないのよ。
I know but I can't help it.

うちはパパぱぱが別居べっきょ中ちゅうなの。（ママがどうしようもない人ひとだから）

My dad's estranged. (Because my mum's hopeless).

万事休すばんじきゅうすだ。もうどうしようもない。

It is all over with me. It can't be helped.

I know but I can't help it.

彼かれが怠け者なまけものなのは私わたしにはどうしようもない。

I cannot help his being lazy.

私わたしとしてはどうしようもない。

I can't help it.

You should have done it earlier. It cannot be helped now.

You really are hopeless.

There is an air of resignation everywhere.