Meaning of なんだか in Japanese

Definition of なんだか

なんだか(nandaka) 【何だか】

なにがなんだか(naniganandaka) 【何が何だか】

(exp) what's what
この仕事は何が何だかさっぱり分からないわ。
I can't make heads or tails of this assignment.

なんだかんだ(nandakanda) · なんだかだ(nandakada) 【何だかんだ ·何だかだ ·何だ彼だ】

(adv) something or other; one thing or another; this or that
彼は、なんだかんだ言って支払いを延期した。
He delayed payment on some pretext or other.

なにがなんだかわからない(naniganandakawakaranai) 【何が何だか分からない】

(exp) don't know what's what
何がなんだか分からない。頭がパニックに陥って整理がつかない。
I didn't know what was what. The inside of my head had gone to panic mode and I couldn't get things straight.

「いい人ひとね。なんだか気が合いそう」「だろうな」

"Isn't she nice? I think we'll get on just fine." "Same here."

"Can you smell something burning?" "Oh, I went and burnt the toast."

C'mon guys, this is a party so let your hair down and relax a little.

さあ、くよくよしないでする。形勢けいせいは君きみに有利ゆうりなんだから。

Come on, take it easy. Chances are in your favor.

お前の責任せきにんなんだから、笑ってごまかすなよ。

This is your responsibility. It's not the kind of thing you can laugh off.

Hold your tongue! You talk too much!

うちのうち上司じょうしときたら、朝令暮改ちょうれいぼかいなんだから、仕事しごとがちっとも進まないよ。

When it comes to my supervisor, he's very inconsistent, so we never get any work done.

I like the sound of what he says, but it IS just talk, you know.

I'll bet it gives her a feeling of superiority to be so beautiful.

Don't be so serious. It's only a game.