Dictionary: “一筋縄ではいかない”

一筋縄ではいかない

ひとすじなわではいかない

not straightforward; not dealt with by ordinary means; very hard to manage

Taking into account the time I'd just spent napping, I'm really picking up the sense that this time's exam really won't be straight forward.

Kun/On information

一

On: いち;いつ
Kun: ひと-;ひと.つ
Stroke count: 1

・one

・one radical (no.1)

筋

On: きん
Kun: すじ
Stroke count: 12

・muscle

・sinew

・tendon

・fiber

・plot

・plan

・descent

縄

On: じょう
Kun: なわ;ただ.す
Stroke count: 15

・straw rope

・cord