一筋縄

ひとすじなわ【一筋縄】

¶彼は～ではいかない

He is very hard to deal with. 扱うのが難しい.

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ひとすじなわ【一筋縄】

●一筋縄ではいかない be very hard to manage [deal with]

・一筋縄ではいかない問題 a very difficult problem to deal with; an intractable [a very difficult, a very tough] problem

・あいつは一筋縄でいく男ではない. He is very hard to deal with. | He is a tough [an ugly, an awkward] customer.

・世の中は何事も一筋縄ではいかない. Nothing is simple (in this world of ours).