Translation of "Faintest" in Japanese

Eyes sensitive to the faintest light...

‎わずかな光でも見える

I haven't the faintest idea what you mean.

- 君が何を言いたいのか私にはさっぱりわからない。
- 何が言いたいのかさっぱり分かんないんだけど。

- I don't have the slightest idea.
- I don't have a clue.
- I haven't the faintest idea.
- I haven't the foggiest idea.
- I don't have the slightest clue.
- I don't have the faintest idea.
- I have no clue.
- I haven't the slightest idea.
- I haven't got the slightest idea.

- 皆目見当がつきません。
- てんで見当つきません。